Home / 206,318.32-309,375.42-73,178.62

Finding the Fourth Proportional to 206,318.32, 309,375.42 and 73,178.62

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Solution

The fourth proportional to 206,318.32, 309,375.42 and 73,178.62 is: 109,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,318.32 : 309,375.42 = 73,178.62 : x
  2. Step 2: Convert to fraction form
    206,318.32/309,375.42 = 73,178.62/x
  3. Step 3: Cross multiply
    206,318.32x = 309,375.42 × 73,178.62
  4. Step 4: Simplify right side
    206,318.32x = 22,639,665,249.66
  5. Step 5: Solve for x
    x = 22,639,665,249.66/206,318.32
  6. Step 6: Final answer
    x = 109,731.73

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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.