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Finding the Fourth Proportional to 274,773.80, 412,179.90 and 108,540.20

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Solution

The fourth proportional to 274,773.80, 412,179.90 and 108,540.20 is: 162,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,773.80 : 412,179.90 = 108,540.20 : x
  2. Step 2: Convert to fraction form
    274,773.80/412,179.90 = 108,540.20/x
  3. Step 3: Cross multiply
    274,773.80x = 412,179.90 × 108,540.20
  4. Step 4: Simplify right side
    274,773.80x = 44,738,088,781.98
  5. Step 5: Solve for x
    x = 44,738,088,781.98/274,773.80
  6. Step 6: Final answer
    x = 162,817.88

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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.