Home / 278,705.26-418,066.56-132,613.15

Finding the Fourth Proportional to 278,705.26, 418,066.56 and 132,613.15

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Solution

The fourth proportional to 278,705.26, 418,066.56 and 132,613.15 is: 198,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,705.26 : 418,066.56 = 132,613.15 : x
  2. Step 2: Convert to fraction form
    278,705.26/418,066.56 = 132,613.15/x
  3. Step 3: Cross multiply
    278,705.26x = 418,066.56 × 132,613.15
  4. Step 4: Simplify right side
    278,705.26x = 55,441,121,340.93
  5. Step 5: Solve for x
    x = 55,441,121,340.93/278,705.26
  6. Step 6: Final answer
    x = 198,923.85

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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.