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Finding the Third Proportional to 136,754 and 206,954

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Solution

The third proportional to 136,754 and 206,954 is: 313,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,754 : 206,954 = 206,954 : x
  2. Step 2: Convert to fraction form
    136,754/206,954 = 206,954/x
  3. Step 3: Cross multiply
    136,754x = 206,954 × 206,954
  4. Step 4: Simplify right side
    136,754x = 42,829,958,116
  5. Step 5: Solve for x
    x = 42,829,958,116/136,754
  6. Step 6: Final answer
    x = 313,189.80

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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.