Home / 206,414.11-309,608.07-73,276.84

Finding the Fourth Proportional to 206,414.11, 309,608.07 and 73,276.84

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Solution

The fourth proportional to 206,414.11, 309,608.07 and 73,276.84 is: 109,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,414.11 : 309,608.07 = 73,276.84 : x
  2. Step 2: Convert to fraction form
    206,414.11/309,608.07 = 73,276.84/x
  3. Step 3: Cross multiply
    206,414.11x = 309,608.07 × 73,276.84
  4. Step 4: Simplify right side
    206,414.11x = 22,687,101,008.10
  5. Step 5: Solve for x
    x = 22,687,101,008.10/206,414.11
  6. Step 6: Final answer
    x = 109,910.61

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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.