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Finding the Third Proportional to 272.38 and 414.94

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Solution

The third proportional to 272.38 and 414.94 is: 632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.38 : 414.94 = 414.94 : x
  2. Step 2: Convert to fraction form
    272.38/414.94 = 414.94/x
  3. Step 3: Cross multiply
    272.38x = 414.94 × 414.94
  4. Step 4: Simplify right side
    272.38x = 172,173.13
  5. Step 5: Solve for x
    x = 172,173.13/272.38
  6. Step 6: Final answer
    x = 632.12

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.