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Finding the Third Proportional to 129,198 and 188,694

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Solution

The third proportional to 129,198 and 188,694 is: 275,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,198 : 188,694 = 188,694 : x
  2. Step 2: Convert to fraction form
    129,198/188,694 = 188,694/x
  3. Step 3: Cross multiply
    129,198x = 188,694 × 188,694
  4. Step 4: Simplify right side
    129,198x = 35,605,425,636
  5. Step 5: Solve for x
    x = 35,605,425,636/129,198
  6. Step 6: Final answer
    x = 275,588.06

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.