Home / 206,344.92-309,517.30-136,207.80

Finding the Fourth Proportional to 206,344.92, 309,517.30 and 136,207.80

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Solution

The fourth proportional to 206,344.92, 309,517.30 and 136,207.80 is: 204,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,344.92 : 309,517.30 = 136,207.80 : x
  2. Step 2: Convert to fraction form
    206,344.92/309,517.30 = 136,207.80/x
  3. Step 3: Cross multiply
    206,344.92x = 309,517.30 × 136,207.80
  4. Step 4: Simplify right side
    206,344.92x = 42,158,670,494.94
  5. Step 5: Solve for x
    x = 42,158,670,494.94/206,344.92
  6. Step 6: Final answer
    x = 204,311.65

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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.