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Finding the Fourth Proportional to 239,493.60, 359,240.34 and 81,722.04

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Solution

The fourth proportional to 239,493.60, 359,240.34 and 81,722.04 is: 122,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,493.60 : 359,240.34 = 81,722.04 : x
  2. Step 2: Convert to fraction form
    239,493.60/359,240.34 = 81,722.04/x
  3. Step 3: Cross multiply
    239,493.60x = 359,240.34 × 81,722.04
  4. Step 4: Simplify right side
    239,493.60x = 29,357,853,435.09
  5. Step 5: Solve for x
    x = 29,357,853,435.09/239,493.60
  6. Step 6: Final answer
    x = 122,583.04

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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.