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Finding the Third Proportional to 213.38 and 461.63

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Solution

The third proportional to 213.38 and 461.63 is: 998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.38 : 461.63 = 461.63 : x
  2. Step 2: Convert to fraction form
    213.38/461.63 = 461.63/x
  3. Step 3: Cross multiply
    213.38x = 461.63 × 461.63
  4. Step 4: Simplify right side
    213.38x = 213,097.64
  5. Step 5: Solve for x
    x = 213,097.64/213.38
  6. Step 6: Final answer
    x = 998.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.