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Finding the Fourth Proportional to 155,262.97, 232,728.33 and 80,307.64

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Solution

The fourth proportional to 155,262.97, 232,728.33 and 80,307.64 is: 120,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,262.97 : 232,728.33 = 80,307.64 : x
  2. Step 2: Convert to fraction form
    155,262.97/232,728.33 = 80,307.64/x
  3. Step 3: Cross multiply
    155,262.97x = 232,728.33 × 80,307.64
  4. Step 4: Simplify right side
    155,262.97x = 18,689,862,943.44
  5. Step 5: Solve for x
    x = 18,689,862,943.44/155,262.97
  6. Step 6: Final answer
    x = 120,375.53

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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.