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Finding the Third Proportional to 18,805 and 40,202

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Solution

The third proportional to 18,805 and 40,202 is: 85,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805 : 40,202 = 40,202 : x
  2. Step 2: Convert to fraction form
    18,805/40,202 = 40,202/x
  3. Step 3: Cross multiply
    18,805x = 40,202 × 40,202
  4. Step 4: Simplify right side
    18,805x = 1,616,200,804
  5. Step 5: Solve for x
    x = 1,616,200,804/18,805
  6. Step 6: Final answer
    x = 85,945.27

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.