Proportional

Definition

When something is said to be proportional, it means that there is a constant relationship between two quantities. As one quantity increases, the other also increases (or decreases) by a fixed proportion.

Related terms

Direct Variation: Direct variation occurs when two variables have a constant ratio between them.

Inverse Variation: Inverse variation occurs when two variables have their product remain constant as one variable changes.

Proportionality Constant: The proportionality constant relates two quantities in a proportional relationship.