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Finding the Third Proportional to 156,958 and 339,672

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Solution

The third proportional to 156,958 and 339,672 is: 735,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,958 : 339,672 = 339,672 : x
  2. Step 2: Convert to fraction form
    156,958/339,672 = 339,672/x
  3. Step 3: Cross multiply
    156,958x = 339,672 × 339,672
  4. Step 4: Simplify right side
    156,958x = 115,377,067,584
  5. Step 5: Solve for x
    x = 115,377,067,584/156,958
  6. Step 6: Final answer
    x = 735,082.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.