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Finding the Fourth Proportional to 206,107.97, 309,147.17 and 63,949.59

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Solution

The fourth proportional to 206,107.97, 309,147.17 and 63,949.59 is: 95,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,107.97 : 309,147.17 = 63,949.59 : x
  2. Step 2: Convert to fraction form
    206,107.97/309,147.17 = 63,949.59/x
  3. Step 3: Cross multiply
    206,107.97x = 309,147.17 × 63,949.59
  4. Step 4: Simplify right side
    206,107.97x = 19,769,834,451.41
  5. Step 5: Solve for x
    x = 19,769,834,451.41/206,107.97
  6. Step 6: Final answer
    x = 95,919.80

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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.