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Finding the Fourth Proportional to 206,959.54, 310,179.72 and 88,491.82

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Solution

The fourth proportional to 206,959.54, 310,179.72 and 88,491.82 is: 132,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,959.54 : 310,179.72 = 88,491.82 : x
  2. Step 2: Convert to fraction form
    206,959.54/310,179.72 = 88,491.82/x
  3. Step 3: Cross multiply
    206,959.54x = 310,179.72 × 88,491.82
  4. Step 4: Simplify right side
    206,959.54x = 27,448,367,949.89
  5. Step 5: Solve for x
    x = 27,448,367,949.89/206,959.54
  6. Step 6: Final answer
    x = 132,626.73

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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.