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Finding the Fourth Proportional to 424,265.54, 636,398.07 and 124,748.60

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Solution

The fourth proportional to 424,265.54, 636,398.07 and 124,748.60 is: 187,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,265.54 : 636,398.07 = 124,748.60 : x
  2. Step 2: Convert to fraction form
    424,265.54/636,398.07 = 124,748.60/x
  3. Step 3: Cross multiply
    424,265.54x = 636,398.07 × 124,748.60
  4. Step 4: Simplify right side
    424,265.54x = 79,389,768,275.20
  5. Step 5: Solve for x
    x = 79,389,768,275.20/424,265.54
  6. Step 6: Final answer
    x = 187,122.83

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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.