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Finding the Fourth Proportional to 177,777.60, 266,277.60 and 138,022.80

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Solution

The fourth proportional to 177,777.60, 266,277.60 and 138,022.80 is: 206,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,777.60 : 266,277.60 = 138,022.80 : x
  2. Step 2: Convert to fraction form
    177,777.60/266,277.60 = 138,022.80/x
  3. Step 3: Cross multiply
    177,777.60x = 266,277.60 × 138,022.80
  4. Step 4: Simplify right side
    177,777.60x = 36,752,379,929.28
  5. Step 5: Solve for x
    x = 36,752,379,929.28/177,777.60
  6. Step 6: Final answer
    x = 206,732.34

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1.5x scale

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.