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Finding the Third Proportional to 84,578 and 180,817

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Solution

The third proportional to 84,578 and 180,817 is: 386,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,578 : 180,817 = 180,817 : x
  2. Step 2: Convert to fraction form
    84,578/180,817 = 180,817/x
  3. Step 3: Cross multiply
    84,578x = 180,817 × 180,817
  4. Step 4: Simplify right side
    84,578x = 32,694,787,489
  5. Step 5: Solve for x
    x = 32,694,787,489/84,578
  6. Step 6: Final answer
    x = 386,563.73

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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.