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Finding the Third Proportional to 237.30 and 520.17

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Solution

The third proportional to 237.30 and 520.17 is: 1,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.30 : 520.17 = 520.17 : x
  2. Step 2: Convert to fraction form
    237.30/520.17 = 520.17/x
  3. Step 3: Cross multiply
    237.30x = 520.17 × 520.17
  4. Step 4: Simplify right side
    237.30x = 270,578.78
  5. Step 5: Solve for x
    x = 270,578.78/237.30
  6. Step 6: Final answer
    x = 1,140.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.