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Finding the Third Proportional to 115.88 and 254.53

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Solution

The third proportional to 115.88 and 254.53 is: 559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115.88 : 254.53 = 254.53 : x
  2. Step 2: Convert to fraction form
    115.88/254.53 = 254.53/x
  3. Step 3: Cross multiply
    115.88x = 254.53 × 254.53
  4. Step 4: Simplify right side
    115.88x = 64,786.16
  5. Step 5: Solve for x
    x = 64,786.16/115.88
  6. Step 6: Final answer
    x = 559.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.