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Finding the Third Proportional to 87,192 and 188,208

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Solution

The third proportional to 87,192 and 188,208 is: 406,255.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,192 : 188,208 = 188,208 : x
  2. Step 2: Convert to fraction form
    87,192/188,208 = 188,208/x
  3. Step 3: Cross multiply
    87,192x = 188,208 × 188,208
  4. Step 4: Simplify right side
    87,192x = 35,422,251,264
  5. Step 5: Solve for x
    x = 35,422,251,264/87,192
  6. Step 6: Final answer
    x = 406,255.75

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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.