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Finding the Fourth Proportional to 487,154.89, 730,732.68 and 132,168.88

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Solution

The fourth proportional to 487,154.89, 730,732.68 and 132,168.88 is: 198,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154.89 : 730,732.68 = 132,168.88 : x
  2. Step 2: Convert to fraction form
    487,154.89/730,732.68 = 132,168.88/x
  3. Step 3: Cross multiply
    487,154.89x = 730,732.68 × 132,168.88
  4. Step 4: Simplify right side
    487,154.89x = 96,580,119,895.00
  5. Step 5: Solve for x
    x = 96,580,119,895.00/487,154.89
  6. Step 6: Final answer
    x = 198,253.41

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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.