Last Updated：2025/11/20

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(mathematics) At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.

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proportional

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Source Word

proportional

Adjective

(mathematics) At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.

Japanese Meaning

数学的には、2つの量が常に一定の比率で変化する関係にある、すなわち比率が一定で直接的に関連している状態を指す。 / 例えば、x に比例して y が増加するような関係を表す（シンボル：∝）。

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When two variables are proportional, doubling one doubles the other.

Google Translation / DeepL Translation

2つの変数が比例しているとき、一方を2倍にするともう一方も2倍になります。

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Sense（1）

(mathematics) At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.

For example, according to the gas laws, pressure is directly proportional to temperature: the quotient derived from pressure (numerator) and temperature (denominator) will be constant; however, pressure is inversely proportional to volume, meaning that the product between volume and pressure will be constant.

Google Translation / DeepL Translation