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Finding the Fourth Proportional to 206,976.27, 310,204.70 and 88,508.31

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Solution

The fourth proportional to 206,976.27, 310,204.70 and 88,508.31 is: 132,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,976.27 : 310,204.70 = 88,508.31 : x
  2. Step 2: Convert to fraction form
    206,976.27/310,204.70 = 88,508.31/x
  3. Step 3: Cross multiply
    206,976.27x = 310,204.70 × 88,508.31
  4. Step 4: Simplify right side
    206,976.27x = 27,455,693,751.06
  5. Step 5: Solve for x
    x = 27,455,693,751.06/206,976.27
  6. Step 6: Final answer
    x = 132,651.41

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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.