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Finding the Third Proportional to 28.59 and 44.39

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Solution

The third proportional to 28.59 and 44.39 is: 68.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.59 : 44.39 = 44.39 : x
  2. Step 2: Convert to fraction form
    28.59/44.39 = 44.39/x
  3. Step 3: Cross multiply
    28.59x = 44.39 × 44.39
  4. Step 4: Simplify right side
    28.59x = 1,970.53
  5. Step 5: Solve for x
    x = 1,970.53/28.59
  6. Step 6: Final answer
    x = 68.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.