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Finding the Third Proportional to 136,590.38 and 206,791.50

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Solution

The third proportional to 136,590.38 and 206,791.50 is: 313,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,590.38 : 206,791.50 = 206,791.50 : x
  2. Step 2: Convert to fraction form
    136,590.38/206,791.50 = 206,791.50/x
  3. Step 3: Cross multiply
    136,590.38x = 206,791.50 × 206,791.50
  4. Step 4: Simplify right side
    136,590.38x = 42,762,724,472.25
  5. Step 5: Solve for x
    x = 42,762,724,472.25/136,590.38
  6. Step 6: Final answer
    x = 313,072.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.