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Finding the Third Proportional to 38,314 and 81,236

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Solution

The third proportional to 38,314 and 81,236 is: 172,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,314 : 81,236 = 81,236 : x
  2. Step 2: Convert to fraction form
    38,314/81,236 = 81,236/x
  3. Step 3: Cross multiply
    38,314x = 81,236 × 81,236
  4. Step 4: Simplify right side
    38,314x = 6,599,287,696
  5. Step 5: Solve for x
    x = 6,599,287,696/38,314
  6. Step 6: Final answer
    x = 172,242.20

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.