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Finding the Third Proportional to 101.13 and 213.13

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Solution

The third proportional to 101.13 and 213.13 is: 449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.13 : 213.13 = 213.13 : x
  2. Step 2: Convert to fraction form
    101.13/213.13 = 213.13/x
  3. Step 3: Cross multiply
    101.13x = 213.13 × 213.13
  4. Step 4: Simplify right side
    101.13x = 45,422.27
  5. Step 5: Solve for x
    x = 45,422.27/101.13
  6. Step 6: Final answer
    x = 449.17

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.