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Finding the Third Proportional to 648.75 and 937.13

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Solution

The third proportional to 648.75 and 937.13 is: 1,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.75 : 937.13 = 937.13 : x
  2. Step 2: Convert to fraction form
    648.75/937.13 = 937.13/x
  3. Step 3: Cross multiply
    648.75x = 937.13 × 937.13
  4. Step 4: Simplify right side
    648.75x = 878,203.27
  5. Step 5: Solve for x
    x = 878,203.27/648.75
  6. Step 6: Final answer
    x = 1,353.69

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.