Home / 278,215.64-417,356.04-88,609.40

Finding the Fourth Proportional to 278,215.64, 417,356.04 and 88,609.40

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Solution

The fourth proportional to 278,215.64, 417,356.04 and 88,609.40 is: 132,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,215.64 : 417,356.04 = 88,609.40 : x
  2. Step 2: Convert to fraction form
    278,215.64/417,356.04 = 88,609.40/x
  3. Step 3: Cross multiply
    278,215.64x = 417,356.04 × 88,609.40
  4. Step 4: Simplify right side
    278,215.64x = 36,981,668,290.78
  5. Step 5: Solve for x
    x = 36,981,668,290.78/278,215.64
  6. Step 6: Final answer
    x = 132,924.48

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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.