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Finding the Fourth Proportional to 239,373.87, 359,142.84 and 81,713.04

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Solution

The fourth proportional to 239,373.87, 359,142.84 and 81,713.04 is: 122,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,373.87 : 359,142.84 = 81,713.04 : x
  2. Step 2: Convert to fraction form
    239,373.87/359,142.84 = 81,713.04/x
  3. Step 3: Cross multiply
    239,373.87x = 359,142.84 × 81,713.04
  4. Step 4: Simplify right side
    239,373.87x = 29,346,653,250.63
  5. Step 5: Solve for x
    x = 29,346,653,250.63/239,373.87
  6. Step 6: Final answer
    x = 122,597.56

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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.