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Finding the Third Proportional to 330.38 and 504.19

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Solution

The third proportional to 330.38 and 504.19 is: 769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.38 : 504.19 = 504.19 : x
  2. Step 2: Convert to fraction form
    330.38/504.19 = 504.19/x
  3. Step 3: Cross multiply
    330.38x = 504.19 × 504.19
  4. Step 4: Simplify right side
    330.38x = 254,205.04
  5. Step 5: Solve for x
    x = 254,205.04/330.38
  6. Step 6: Final answer
    x = 769.44

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.