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Finding the Third Proportional to 82,676 and 178,447

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Solution

The third proportional to 82,676 and 178,447 is: 385,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,676 : 178,447 = 178,447 : x
  2. Step 2: Convert to fraction form
    82,676/178,447 = 178,447/x
  3. Step 3: Cross multiply
    82,676x = 178,447 × 178,447
  4. Step 4: Simplify right side
    82,676x = 31,843,331,809
  5. Step 5: Solve for x
    x = 31,843,331,809/82,676
  6. Step 6: Final answer
    x = 385,158.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.