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Finding the Third Proportional to 28.86 and 62.08

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Solution

The third proportional to 28.86 and 62.08 is: 133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.86 : 62.08 = 62.08 : x
  2. Step 2: Convert to fraction form
    28.86/62.08 = 62.08/x
  3. Step 3: Cross multiply
    28.86x = 62.08 × 62.08
  4. Step 4: Simplify right side
    28.86x = 3,853.69
  5. Step 5: Solve for x
    x = 3,853.69/28.86
  6. Step 6: Final answer
    x = 133.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.