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Finding the Third Proportional to 28.50 and 57

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Solution

The third proportional to 28.50 and 57 is: 114

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.50 : 57 = 57 : x
  2. Step 2: Convert to fraction form
    28.50/57 = 57/x
  3. Step 3: Cross multiply
    28.50x = 57 × 57
  4. Step 4: Simplify right side
    28.50x = 3,249
  5. Step 5: Solve for x
    x = 3,249/28.50
  6. Step 6: Final answer
    x = 114

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Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.