Finding the Fourth Proportional to 437,922.70, 656,827.56 and 138,433.57
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Solution
The fourth proportional to 437,922.70, 656,827.56 and 138,433.57 is: 207,632.50
Step by Step Solution
- Step 1: Write the proportion equation
437,922.70 : 656,827.56 = 138,433.57 : x - Step 2: Convert to fraction form
437,922.70/656,827.56 = 138,433.57/x - Step 3: Cross multiply
437,922.70x = 656,827.56 × 138,433.57 - Step 4: Simplify right side
437,922.70x = 90,926,984,005.19 - Step 5: Solve for x
x = 90,926,984,005.19/437,922.70 - Step 6: Final answer
x = 207,632.50
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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.