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Finding the Third Proportional to 115.81 and 252.63

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Solution

The third proportional to 115.81 and 252.63 is: 551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115.81 : 252.63 = 252.63 : x
  2. Step 2: Convert to fraction form
    115.81/252.63 = 252.63/x
  3. Step 3: Cross multiply
    115.81x = 252.63 × 252.63
  4. Step 4: Simplify right side
    115.81x = 63,819.39
  5. Step 5: Solve for x
    x = 63,819.39/115.81
  6. Step 6: Final answer
    x = 551.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.