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Finding the Third Proportional to 161,638.31 and 351,255.38

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Solution

The third proportional to 161,638.31 and 351,255.38 is: 763,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,638.31 : 351,255.38 = 351,255.38 : x
  2. Step 2: Convert to fraction form
    161,638.31/351,255.38 = 351,255.38/x
  3. Step 3: Cross multiply
    161,638.31x = 351,255.38 × 351,255.38
  4. Step 4: Simplify right side
    161,638.31x = 123,380,338,466.39
  5. Step 5: Solve for x
    x = 123,380,338,466.39/161,638.31
  6. Step 6: Final answer
    x = 763,311.23

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.