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Finding the Fourth Proportional to 381,379.56, 572,154.39 and 125,223.54

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Solution

The fourth proportional to 381,379.56, 572,154.39 and 125,223.54 is: 187,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,379.56 : 572,154.39 = 125,223.54 : x
  2. Step 2: Convert to fraction form
    381,379.56/572,154.39 = 125,223.54/x
  3. Step 3: Cross multiply
    381,379.56x = 572,154.39 × 125,223.54
  4. Step 4: Simplify right side
    381,379.56x = 71,647,198,142.34
  5. Step 5: Solve for x
    x = 71,647,198,142.34/381,379.56
  6. Step 6: Final answer
    x = 187,863.24

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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.