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Finding the Fourth Proportional to 206,137.35, 309,250.17 and 63,979.65

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Solution

The fourth proportional to 206,137.35, 309,250.17 and 63,979.65 is: 95,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,137.35 : 309,250.17 = 63,979.65 : x
  2. Step 2: Convert to fraction form
    206,137.35/309,250.17 = 63,979.65/x
  3. Step 3: Cross multiply
    206,137.35x = 309,250.17 × 63,979.65
  4. Step 4: Simplify right side
    206,137.35x = 19,785,717,639.04
  5. Step 5: Solve for x
    x = 19,785,717,639.04/206,137.35
  6. Step 6: Final answer
    x = 95,983.18

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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.