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Finding the Third Proportional to 363.19 and 395.06

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Solution

The third proportional to 363.19 and 395.06 is: 429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.19 : 395.06 = 395.06 : x
  2. Step 2: Convert to fraction form
    363.19/395.06 = 395.06/x
  3. Step 3: Cross multiply
    363.19x = 395.06 × 395.06
  4. Step 4: Simplify right side
    363.19x = 156,074.38
  5. Step 5: Solve for x
    x = 156,074.38/363.19
  6. Step 6: Final answer
    x = 429.73

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.