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Finding the Fourth Proportional to 392,149.12, 588,168.10 and 125,874.58

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Solution

The fourth proportional to 392,149.12, 588,168.10 and 125,874.58 is: 188,794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,149.12 : 588,168.10 = 125,874.58 : x
  2. Step 2: Convert to fraction form
    392,149.12/588,168.10 = 125,874.58/x
  3. Step 3: Cross multiply
    392,149.12x = 588,168.10 × 125,874.58
  4. Step 4: Simplify right side
    392,149.12x = 74,035,412,556.90
  5. Step 5: Solve for x
    x = 74,035,412,556.90/392,149.12
  6. Step 6: Final answer
    x = 188,794.03

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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.