Home / 386,795.38-580,061.68-134,016.87

Finding the Fourth Proportional to 386,795.38, 580,061.68 and 134,016.87

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Solution

The fourth proportional to 386,795.38, 580,061.68 and 134,016.87 is: 200,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,795.38 : 580,061.68 = 134,016.87 : x
  2. Step 2: Convert to fraction form
    386,795.38/580,061.68 = 134,016.87/x
  3. Step 3: Cross multiply
    386,795.38x = 580,061.68 × 134,016.87
  4. Step 4: Simplify right side
    386,795.38x = 77,738,052,210.70
  5. Step 5: Solve for x
    x = 77,738,052,210.70/386,795.38
  6. Step 6: Final answer
    x = 200,979.78

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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.