Final answer:
Proportion is the relationship of parts of a body or form to one another and of the parts to the whole subject in art. Objects and figures drawn with correct proportions create a sense of order and balance. The Golden Mean, also known as the Golden Section, is a mathematical ratio associated with proportion and balance in art.
Step-by-step explanation:
Proportion is the relationship of parts of a body or form to one another and of the parts to the whole. It refers to how elements in an artwork relate to each other and to the entire subject. For example, it could involve the size of the head of a figure in relation to the entire body. Objects and figures that are drawn with correct proportions create a sense of order and balance in the artwork.
The Golden Mean, another term for the Golden Section, is a mathematical ratio that is often associated with proportion and balance in art and design. It is a harmonious ratio that is found in nature and is believed to create aesthetically pleasing compositions.