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Finding the Fourth Proportional to 177,781.80, 266,672.70 and 149,788.20

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Solution

The fourth proportional to 177,781.80, 266,672.70 and 149,788.20 is: 224,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,781.80 : 266,672.70 = 149,788.20 : x
  2. Step 2: Convert to fraction form
    177,781.80/266,672.70 = 149,788.20/x
  3. Step 3: Cross multiply
    177,781.80x = 266,672.70 × 149,788.20
  4. Step 4: Simplify right side
    177,781.80x = 39,944,423,722.14
  5. Step 5: Solve for x
    x = 39,944,423,722.14/177,781.80
  6. Step 6: Final answer
    x = 224,682.30

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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.