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Finding the Third Proportional to 86,340 and 131,302

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Solution

The third proportional to 86,340 and 131,302 is: 199,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,340 : 131,302 = 131,302 : x
  2. Step 2: Convert to fraction form
    86,340/131,302 = 131,302/x
  3. Step 3: Cross multiply
    86,340x = 131,302 × 131,302
  4. Step 4: Simplify right side
    86,340x = 17,240,215,204
  5. Step 5: Solve for x
    x = 17,240,215,204/86,340
  6. Step 6: Final answer
    x = 199,678.19

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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.