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Finding the Fourth Proportional to 383,137.32, 574,753.70 and 130,398.39

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Solution

The fourth proportional to 383,137.32, 574,753.70 and 130,398.39 is: 195,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,137.32 : 574,753.70 = 130,398.39 : x
  2. Step 2: Convert to fraction form
    383,137.32/574,753.70 = 130,398.39/x
  3. Step 3: Cross multiply
    383,137.32x = 574,753.70 × 130,398.39
  4. Step 4: Simplify right side
    383,137.32x = 74,946,957,126.54
  5. Step 5: Solve for x
    x = 74,946,957,126.54/383,137.32
  6. Step 6: Final answer
    x = 195,613.83

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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.