Finding the Fourth Proportional to 437,621.93, 656,432.99 and 138,125.85
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Solution
The fourth proportional to 437,621.93, 656,432.99 and 138,125.85 is: 207,188.80
Step by Step Solution
- Step 1: Write the proportion equation
437,621.93 : 656,432.99 = 138,125.85 : x - Step 2: Convert to fraction form
437,621.93/656,432.99 = 138,125.85/x - Step 3: Cross multiply
437,621.93x = 656,432.99 × 138,125.85 - Step 4: Simplify right side
437,621.93x = 90,670,364,711.79 - Step 5: Solve for x
x = 90,670,364,711.79/437,621.93 - Step 6: Final answer
x = 207,188.80
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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.