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Finding the Third Proportional to 205.38 and 442.88

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Solution

The third proportional to 205.38 and 442.88 is: 955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.38 : 442.88 = 442.88 : x
  2. Step 2: Convert to fraction form
    205.38/442.88 = 442.88/x
  3. Step 3: Cross multiply
    205.38x = 442.88 × 442.88
  4. Step 4: Simplify right side
    205.38x = 196,138.27
  5. Step 5: Solve for x
    x = 196,138.27/205.38
  6. Step 6: Final answer
    x = 955.03

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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.