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Finding the Fourth Proportional to 239,722.58, 359,744.26 and 99,481.20

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Solution

The fourth proportional to 239,722.58, 359,744.26 and 99,481.20 is: 149,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,722.58 : 359,744.26 = 99,481.20 : x
  2. Step 2: Convert to fraction form
    239,722.58/359,744.26 = 99,481.20/x
  3. Step 3: Cross multiply
    239,722.58x = 359,744.26 × 99,481.20
  4. Step 4: Simplify right side
    239,722.58x = 35,787,790,677.91
  5. Step 5: Solve for x
    x = 35,787,790,677.91/239,722.58
  6. Step 6: Final answer
    x = 149,288.36

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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.