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Finding the Third Proportional to 81,623 and 179,284

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Solution

The third proportional to 81,623 and 179,284 is: 393,795.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,623 : 179,284 = 179,284 : x
  2. Step 2: Convert to fraction form
    81,623/179,284 = 179,284/x
  3. Step 3: Cross multiply
    81,623x = 179,284 × 179,284
  4. Step 4: Simplify right side
    81,623x = 32,142,752,656
  5. Step 5: Solve for x
    x = 32,142,752,656/81,623
  6. Step 6: Final answer
    x = 393,795.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.