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Finding the Third Proportional to 80,558 and 172,778

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Solution

The third proportional to 80,558 and 172,778 is: 370,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,558 : 172,778 = 172,778 : x
  2. Step 2: Convert to fraction form
    80,558/172,778 = 172,778/x
  3. Step 3: Cross multiply
    80,558x = 172,778 × 172,778
  4. Step 4: Simplify right side
    80,558x = 29,852,237,284
  5. Step 5: Solve for x
    x = 29,852,237,284/80,558
  6. Step 6: Final answer
    x = 370,568.25

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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.