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Finding the Third Proportional to 82,813 and 178,853

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Solution

The third proportional to 82,813 and 178,853 is: 386,272.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,813 : 178,853 = 178,853 : x
  2. Step 2: Convert to fraction form
    82,813/178,853 = 178,853/x
  3. Step 3: Cross multiply
    82,813x = 178,853 × 178,853
  4. Step 4: Simplify right side
    82,813x = 31,988,395,609
  5. Step 5: Solve for x
    x = 31,988,395,609/82,813
  6. Step 6: Final answer
    x = 386,272.63

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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.