If someone weighs 200 pounds and has 22% body fat, what is their lean body mass?

To calculate lean body mass, you first need to determine the amount of body fat. In this scenario, if someone weighs 200 pounds and has a body fat percentage of 22%, the total amount of body fat can be found by multiplying their weight by the body fat percentage.

So, 22% of 200 pounds is calculated as:

200 pounds * 0.22 = 44 pounds of body fat.

Next, to find the lean body mass, you subtract the body fat from the total body weight. Therefore:

200 pounds (total weight) - 44 pounds (body fat) = 156 pounds of lean body mass.

This calculation shows that the correct answer is indeed 156 pounds. Understanding this formula and method is crucial in fitness and health assessments, as it provides a more accurate representation of a person's body composition by focusing on their lean mass versus fat mass.