Finding the Fourth Proportional to 437,682.15, 656,523.36 and 138,193.02
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Solution
The fourth proportional to 437,682.15, 656,523.36 and 138,193.02 is: 207,289.57
Step by Step Solution
- Step 1: Write the proportion equation
437,682.15 : 656,523.36 = 138,193.02 : x - Step 2: Convert to fraction form
437,682.15/656,523.36 = 138,193.02/x - Step 3: Cross multiply
437,682.15x = 656,523.36 × 138,193.02 - Step 4: Simplify right side
437,682.15x = 90,726,945,818.95 - Step 5: Solve for x
x = 90,726,945,818.95/437,682.15 - Step 6: Final answer
x = 207,289.57
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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.