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Finding the Fourth Proportional to 192,599.78, 288,843.17 and 72,570.13

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Solution

The fourth proportional to 192,599.78, 288,843.17 and 72,570.13 is: 108,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,599.78 : 288,843.17 = 72,570.13 : x
  2. Step 2: Convert to fraction form
    192,599.78/288,843.17 = 72,570.13/x
  3. Step 3: Cross multiply
    192,599.78x = 288,843.17 × 72,570.13
  4. Step 4: Simplify right side
    192,599.78x = 20,961,385,311.55
  5. Step 5: Solve for x
    x = 20,961,385,311.55/192,599.78
  6. Step 6: Final answer
    x = 108,833.90

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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.