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Finding the Third Proportional to 135,959 and 206,817

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Solution

The third proportional to 135,959 and 206,817 is: 314,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959 : 206,817 = 206,817 : x
  2. Step 2: Convert to fraction form
    135,959/206,817 = 206,817/x
  3. Step 3: Cross multiply
    135,959x = 206,817 × 206,817
  4. Step 4: Simplify right side
    135,959x = 42,773,271,489
  5. Step 5: Solve for x
    x = 42,773,271,489/135,959
  6. Step 6: Final answer
    x = 314,604.19

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.