Finding the Fourth Proportional to 216,451.53, 324,729.84 and 66,691.82
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Solution
The fourth proportional to 216,451.53, 324,729.84 and 66,691.82 is: 100,053.91
Step by Step Solution
- Step 1: Write the proportion equation
216,451.53 : 324,729.84 = 66,691.82 : x - Step 2: Convert to fraction form
216,451.53/324,729.84 = 66,691.82/x - Step 3: Cross multiply
216,451.53x = 324,729.84 × 66,691.82 - Step 4: Simplify right side
216,451.53x = 21,656,822,414.26 - Step 5: Solve for x
x = 21,656,822,414.26/216,451.53 - Step 6: Final answer
x = 100,053.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.