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Finding the Fourth Proportional to 149,373.20, 223,411.80 and 133,691.60

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Solution

The fourth proportional to 149,373.20, 223,411.80 and 133,691.60 is: 199,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,373.20 : 223,411.80 = 133,691.60 : x
  2. Step 2: Convert to fraction form
    149,373.20/223,411.80 = 133,691.60/x
  3. Step 3: Cross multiply
    149,373.20x = 223,411.80 × 133,691.60
  4. Step 4: Simplify right side
    149,373.20x = 29,868,281,000.88
  5. Step 5: Solve for x
    x = 29,868,281,000.88/149,373.20
  6. Step 6: Final answer
    x = 199,957.43

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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.