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Finding the Fourth Proportional to 171,044.20, 256,566.30 and 82,470.70

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Solution

The fourth proportional to 171,044.20, 256,566.30 and 82,470.70 is: 123,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,044.20 : 256,566.30 = 82,470.70 : x
  2. Step 2: Convert to fraction form
    171,044.20/256,566.30 = 82,470.70/x
  3. Step 3: Cross multiply
    171,044.20x = 256,566.30 × 82,470.70
  4. Step 4: Simplify right side
    171,044.20x = 21,159,202,357.41
  5. Step 5: Solve for x
    x = 21,159,202,357.41/171,044.20
  6. Step 6: Final answer
    x = 123,706.05

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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.