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Finding the Fourth Proportional to 168,289.89, 252,279 and 88,311.30

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Solution

The fourth proportional to 168,289.89, 252,279 and 88,311.30 is: 132,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,289.89 : 252,279 = 88,311.30 : x
  2. Step 2: Convert to fraction form
    168,289.89/252,279 = 88,311.30/x
  3. Step 3: Cross multiply
    168,289.89x = 252,279 × 88,311.30
  4. Step 4: Simplify right side
    168,289.89x = 22,279,086,452.70
  5. Step 5: Solve for x
    x = 22,279,086,452.70/168,289.89
  6. Step 6: Final answer
    x = 132,385.17

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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.