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Finding the Third Proportional to 81,808 and 175,272

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Solution

The third proportional to 81,808 and 175,272 is: 375,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,808 : 175,272 = 175,272 : x
  2. Step 2: Convert to fraction form
    81,808/175,272 = 175,272/x
  3. Step 3: Cross multiply
    81,808x = 175,272 × 175,272
  4. Step 4: Simplify right side
    81,808x = 30,720,273,984
  5. Step 5: Solve for x
    x = 30,720,273,984/81,808
  6. Step 6: Final answer
    x = 375,516.75

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.