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Finding the Fourth Proportional to 278,567.71, 417,694.74 and 88,983.55

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Solution

The fourth proportional to 278,567.71, 417,694.74 and 88,983.55 is: 133,425.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,567.71 : 417,694.74 = 88,983.55 : x
  2. Step 2: Convert to fraction form
    278,567.71/417,694.74 = 88,983.55/x
  3. Step 3: Cross multiply
    278,567.71x = 417,694.74 × 88,983.55
  4. Step 4: Simplify right side
    278,567.71x = 37,167,960,781.53
  5. Step 5: Solve for x
    x = 37,167,960,781.53/278,567.71
  6. Step 6: Final answer
    x = 133,425.23

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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.