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Finding the Third Proportional to 38,440 and 82,808

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Solution

The third proportional to 38,440 and 82,808 is: 178,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440 : 82,808 = 82,808 : x
  2. Step 2: Convert to fraction form
    38,440/82,808 = 82,808/x
  3. Step 3: Cross multiply
    38,440x = 82,808 × 82,808
  4. Step 4: Simplify right side
    38,440x = 6,857,164,864
  5. Step 5: Solve for x
    x = 6,857,164,864/38,440
  6. Step 6: Final answer
    x = 178,386.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.