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Finding the Fourth Proportional to 221,255.85, 331,885.53 and 88,169.97

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Solution

The fourth proportional to 221,255.85, 331,885.53 and 88,169.97 is: 132,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,255.85 : 331,885.53 = 88,169.97 : x
  2. Step 2: Convert to fraction form
    221,255.85/331,885.53 = 88,169.97/x
  3. Step 3: Cross multiply
    221,255.85x = 331,885.53 × 88,169.97
  4. Step 4: Simplify right side
    221,255.85x = 29,262,337,223.53
  5. Step 5: Solve for x
    x = 29,262,337,223.53/221,255.85
  6. Step 6: Final answer
    x = 132,255.65

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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.