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Finding the Fourth Proportional to 177,540.10, 266,310.15 and 161,469.70

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Solution

The fourth proportional to 177,540.10, 266,310.15 and 161,469.70 is: 242,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,540.10 : 266,310.15 = 161,469.70 : x
  2. Step 2: Convert to fraction form
    177,540.10/266,310.15 = 161,469.70/x
  3. Step 3: Cross multiply
    177,540.10x = 266,310.15 × 161,469.70
  4. Step 4: Simplify right side
    177,540.10x = 43,001,020,027.46
  5. Step 5: Solve for x
    x = 43,001,020,027.46/177,540.10
  6. Step 6: Final answer
    x = 242,204.55

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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.