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Finding the Fourth Proportional to 171,034.20, 256,551.30 and 82,460.70

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Solution

The fourth proportional to 171,034.20, 256,551.30 and 82,460.70 is: 123,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,034.20 : 256,551.30 = 82,460.70 : x
  2. Step 2: Convert to fraction form
    171,034.20/256,551.30 = 82,460.70/x
  3. Step 3: Cross multiply
    171,034.20x = 256,551.30 × 82,460.70
  4. Step 4: Simplify right side
    171,034.20x = 21,155,399,783.91
  5. Step 5: Solve for x
    x = 21,155,399,783.91/171,034.20
  6. Step 6: Final answer
    x = 123,691.05

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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.