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Finding the Third Proportional to 82,812 and 178,737

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Solution

The third proportional to 82,812 and 178,737 is: 385,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,812 : 178,737 = 178,737 : x
  2. Step 2: Convert to fraction form
    82,812/178,737 = 178,737/x
  3. Step 3: Cross multiply
    82,812x = 178,737 × 178,737
  4. Step 4: Simplify right side
    82,812x = 31,946,915,169
  5. Step 5: Solve for x
    x = 31,946,915,169/82,812
  6. Step 6: Final answer
    x = 385,776.40

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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.