body proportions; figure
Primarily used for human body proportions, especially in fashion, beauty, and fitness contexts. Often refers to an attractive or well-balanced figure.
She has a good figure.
This dress makes your proportions look beautiful.
proportionate width; ratio
Less common than sense 1. Used in design, art, or technical contexts to describe the proportional relationship of widths or dimensions. Often replaced by 比率 (hiritsu) in everyday Japanese.
If you change the proportions of this shape, the balance will be lost.