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Finding the Fourth Proportional to 239,791.95, 359,687.88 and 71,311.59

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Solution

The fourth proportional to 239,791.95, 359,687.88 and 71,311.59 is: 106,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,791.95 : 359,687.88 = 71,311.59 : x
  2. Step 2: Convert to fraction form
    239,791.95/359,687.88 = 71,311.59/x
  3. Step 3: Cross multiply
    239,791.95x = 359,687.88 × 71,311.59
  4. Step 4: Simplify right side
    239,791.95x = 25,649,914,626.53
  5. Step 5: Solve for x
    x = 25,649,914,626.53/239,791.95
  6. Step 6: Final answer
    x = 106,967.37

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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.