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Finding the Fourth Proportional to 275,067.80, 412,601.70 and 185,387.13

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Solution

The fourth proportional to 275,067.80, 412,601.70 and 185,387.13 is: 278,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,067.80 : 412,601.70 = 185,387.13 : x
  2. Step 2: Convert to fraction form
    275,067.80/412,601.70 = 185,387.13/x
  3. Step 3: Cross multiply
    275,067.80x = 412,601.70 × 185,387.13
  4. Step 4: Simplify right side
    275,067.80x = 76,491,044,996.12
  5. Step 5: Solve for x
    x = 76,491,044,996.12/275,067.80
  6. Step 6: Final answer
    x = 278,080.70

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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.