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Finding the Third Proportional to 87,278 and 188,484

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Solution

The third proportional to 87,278 and 188,484 is: 407,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,278 : 188,484 = 188,484 : x
  2. Step 2: Convert to fraction form
    87,278/188,484 = 188,484/x
  3. Step 3: Cross multiply
    87,278x = 188,484 × 188,484
  4. Step 4: Simplify right side
    87,278x = 35,526,218,256
  5. Step 5: Solve for x
    x = 35,526,218,256/87,278
  6. Step 6: Final answer
    x = 407,046.66

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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.