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Finding the Fourth Proportional to 424,877.92, 637,097.32 and 125,320.36

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Solution

The fourth proportional to 424,877.92, 637,097.32 and 125,320.36 is: 187,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,877.92 : 637,097.32 = 125,320.36 : x
  2. Step 2: Convert to fraction form
    424,877.92/637,097.32 = 125,320.36/x
  3. Step 3: Cross multiply
    424,877.92x = 637,097.32 × 125,320.36
  4. Step 4: Simplify right side
    424,877.92x = 79,841,265,497.44
  5. Step 5: Solve for x
    x = 79,841,265,497.44/424,877.92
  6. Step 6: Final answer
    x = 187,915.78

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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.