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Finding the Fourth Proportional to 206,587.86, 310,012.85 and 88,260.09

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Solution

The fourth proportional to 206,587.86, 310,012.85 and 88,260.09 is: 132,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,587.86 : 310,012.85 = 88,260.09 : x
  2. Step 2: Convert to fraction form
    206,587.86/310,012.85 = 88,260.09/x
  3. Step 3: Cross multiply
    206,587.86x = 310,012.85 × 88,260.09
  4. Step 4: Simplify right side
    206,587.86x = 27,361,762,042.16
  5. Step 5: Solve for x
    x = 27,361,762,042.16/206,587.86
  6. Step 6: Final answer
    x = 132,446.13

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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.