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Finding the Third Proportional to 237.25 and 423.75

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Solution

The third proportional to 237.25 and 423.75 is: 756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.25 : 423.75 = 423.75 : x
  2. Step 2: Convert to fraction form
    237.25/423.75 = 423.75/x
  3. Step 3: Cross multiply
    237.25x = 423.75 × 423.75
  4. Step 4: Simplify right side
    237.25x = 179,564.06
  5. Step 5: Solve for x
    x = 179,564.06/237.25
  6. Step 6: Final answer
    x = 756.86

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.