Home / 278,169.28-417,286.56-88,563.20

Finding the Fourth Proportional to 278,169.28, 417,286.56 and 88,563.20

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Solution

The fourth proportional to 278,169.28, 417,286.56 and 88,563.20 is: 132,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,169.28 : 417,286.56 = 88,563.20 : x
  2. Step 2: Convert to fraction form
    278,169.28/417,286.56 = 88,563.20/x
  3. Step 3: Cross multiply
    278,169.28x = 417,286.56 × 88,563.20
  4. Step 4: Simplify right side
    278,169.28x = 36,956,233,070.59
  5. Step 5: Solve for x
    x = 36,956,233,070.59/278,169.28
  6. Step 6: Final answer
    x = 132,855.19

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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.