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Finding the Fourth Proportional to 240,725.60, 360,991.20 and 82,872.80

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Solution

The fourth proportional to 240,725.60, 360,991.20 and 82,872.80 is: 124,275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,725.60 : 360,991.20 = 82,872.80 : x
  2. Step 2: Convert to fraction form
    240,725.60/360,991.20 = 82,872.80/x
  3. Step 3: Cross multiply
    240,725.60x = 360,991.20 × 82,872.80
  4. Step 4: Simplify right side
    240,725.60x = 29,916,351,519.36
  5. Step 5: Solve for x
    x = 29,916,351,519.36/240,725.60
  6. Step 6: Final answer
    x = 124,275.74

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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.