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Finding the Fourth Proportional to 272,135.60, 408,204.70 and 82,597.61

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Solution

The fourth proportional to 272,135.60, 408,204.70 and 82,597.61 is: 123,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,135.60 : 408,204.70 = 82,597.61 : x
  2. Step 2: Convert to fraction form
    272,135.60/408,204.70 = 82,597.61/x
  3. Step 3: Cross multiply
    272,135.60x = 408,204.70 × 82,597.61
  4. Step 4: Simplify right side
    272,135.60x = 33,716,732,610.77
  5. Step 5: Solve for x
    x = 33,716,732,610.77/272,135.60
  6. Step 6: Final answer
    x = 123,896.81

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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.