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Finding the Third Proportional to 81,888 and 176,304

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Solution

The third proportional to 81,888 and 176,304 is: 379,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,888 : 176,304 = 176,304 : x
  2. Step 2: Convert to fraction form
    81,888/176,304 = 176,304/x
  3. Step 3: Cross multiply
    81,888x = 176,304 × 176,304
  4. Step 4: Simplify right side
    81,888x = 31,083,100,416
  5. Step 5: Solve for x
    x = 31,083,100,416/81,888
  6. Step 6: Final answer
    x = 379,580.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.