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Finding the Third Proportional to 136,763 and 206,976

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Solution

The third proportional to 136,763 and 206,976 is: 313,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,763 : 206,976 = 206,976 : x
  2. Step 2: Convert to fraction form
    136,763/206,976 = 206,976/x
  3. Step 3: Cross multiply
    136,763x = 206,976 × 206,976
  4. Step 4: Simplify right side
    136,763x = 42,839,064,576
  5. Step 5: Solve for x
    x = 42,839,064,576/136,763
  6. Step 6: Final answer
    x = 313,235.78

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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.