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Finding the Third Proportional to 82,767 and 178,657

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Solution

The third proportional to 82,767 and 178,657 is: 385,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,767 : 178,657 = 178,657 : x
  2. Step 2: Convert to fraction form
    82,767/178,657 = 178,657/x
  3. Step 3: Cross multiply
    82,767x = 178,657 × 178,657
  4. Step 4: Simplify right side
    82,767x = 31,918,323,649
  5. Step 5: Solve for x
    x = 31,918,323,649/82,767
  6. Step 6: Final answer
    x = 385,640.70

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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.