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Finding the Fourth Proportional to 240,717.60, 360,979.20 and 82,864.80

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Solution

The fourth proportional to 240,717.60, 360,979.20 and 82,864.80 is: 124,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,717.60 : 360,979.20 = 82,864.80 : x
  2. Step 2: Convert to fraction form
    240,717.60/360,979.20 = 82,864.80/x
  3. Step 3: Cross multiply
    240,717.60x = 360,979.20 × 82,864.80
  4. Step 4: Simplify right side
    240,717.60x = 29,912,469,212.16
  5. Step 5: Solve for x
    x = 29,912,469,212.16/240,717.60
  6. Step 6: Final answer
    x = 124,263.74

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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.