Finding the Fourth Proportional to 416,723.41, 575,078.26 and 225,736.75
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Solution
The fourth proportional to 416,723.41, 575,078.26 and 225,736.75 is: 311,516.69
Step by Step Solution
- Step 1: Write the proportion equation
416,723.41 : 575,078.26 = 225,736.75 : x - Step 2: Convert to fraction form
416,723.41/575,078.26 = 225,736.75/x - Step 3: Cross multiply
416,723.41x = 575,078.26 × 225,736.75 - Step 4: Simplify right side
416,723.41x = 129,816,297,408.06 - Step 5: Solve for x
x = 129,816,297,408.06/416,723.41 - Step 6: Final answer
x = 311,516.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.