Finding the Fourth Proportional to 386,747.28, 532,716.84 and 273,375.12
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Solution
The fourth proportional to 386,747.28, 532,716.84 and 273,375.12 is: 376,554.76
Step by Step Solution
- Step 1: Write the proportion equation
386,747.28 : 532,716.84 = 273,375.12 : x - Step 2: Convert to fraction form
386,747.28/532,716.84 = 273,375.12/x - Step 3: Cross multiply
386,747.28x = 532,716.84 × 273,375.12 - Step 4: Simplify right side
386,747.28x = 145,631,530,061.02 - Step 5: Solve for x
x = 145,631,530,061.02/386,747.28 - Step 6: Final answer
x = 376,554.76
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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.