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Finding the Third Proportional to 98,500 and 217,736

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Solution

The third proportional to 98,500 and 217,736 is: 481,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,500 : 217,736 = 217,736 : x
  2. Step 2: Convert to fraction form
    98,500/217,736 = 217,736/x
  3. Step 3: Cross multiply
    98,500x = 217,736 × 217,736
  4. Step 4: Simplify right side
    98,500x = 47,408,965,696
  5. Step 5: Solve for x
    x = 47,408,965,696/98,500
  6. Step 6: Final answer
    x = 481,309.30

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.