They proportioned the budget among the projects to reflect each project's needs.

The chef was carefully proportioning the spices to ensure the sauce tasted balanced.

On the exam, the item required a proportional analogy, such as 'bird is to nest as bee is to hive,' to demonstrate students' understanding of relational reasoning.

The antique algebra text listed several means proportional between segments, though the notation is archaic.

The mean proportional between a and b is the square root of ab.

When solving classical construction problems, mathematicians searched for techniques to construct mean proportionals between two segments.

Using a compound proportion, she demonstrated that the product of the three rates was proportional to the product of the three durations.

In physics class, we learned that pressure and volume are connected by a reciprocal proportion.

In physics, the inverse proportion between pressure and volume under constant temperature is described by Boyle's law.

When the three numbers 2, 3, and 6 are compared, they form a harmonic proportion that shows the second number as the harmonic mean of the first and third.