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Finding the Fourth Proportional to 425,344.48, 638,110.14 and 125,801.71

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Solution

The fourth proportional to 425,344.48, 638,110.14 and 125,801.71 is: 188,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,344.48 : 638,110.14 = 125,801.71 : x
  2. Step 2: Convert to fraction form
    425,344.48/638,110.14 = 125,801.71/x
  3. Step 3: Cross multiply
    425,344.48x = 638,110.14 × 125,801.71
  4. Step 4: Simplify right side
    425,344.48x = 80,275,346,780.34
  5. Step 5: Solve for x
    x = 80,275,346,780.34/425,344.48
  6. Step 6: Final answer
    x = 188,730.20

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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.