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Finding the Fourth Proportional to 387,255.92, 580,919.72 and 150,616.56

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Solution

The fourth proportional to 387,255.92, 580,919.72 and 150,616.56 is: 225,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,255.92 : 580,919.72 = 150,616.56 : x
  2. Step 2: Convert to fraction form
    387,255.92/580,919.72 = 150,616.56/x
  3. Step 3: Cross multiply
    387,255.92x = 580,919.72 × 150,616.56
  4. Step 4: Simplify right side
    387,255.92x = 87,496,129,862.56
  5. Step 5: Solve for x
    x = 87,496,129,862.56/387,255.92
  6. Step 6: Final answer
    x = 225,938.78

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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.