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Finding the Third Proportional to 79,250 and 172,716

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Solution

The third proportional to 79,250 and 172,716 is: 376,414.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250 : 172,716 = 172,716 : x
  2. Step 2: Convert to fraction form
    79,250/172,716 = 172,716/x
  3. Step 3: Cross multiply
    79,250x = 172,716 × 172,716
  4. Step 4: Simplify right side
    79,250x = 29,830,816,656
  5. Step 5: Solve for x
    x = 29,830,816,656/79,250
  6. Step 6: Final answer
    x = 376,414.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.