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Finding the Third Proportional to 798.16 and 1,198.31

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Solution

The third proportional to 798.16 and 1,198.31 is: 1,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.16 : 1,198.31 = 1,198.31 : x
  2. Step 2: Convert to fraction form
    798.16/1,198.31 = 1,198.31/x
  3. Step 3: Cross multiply
    798.16x = 1,198.31 × 1,198.31
  4. Step 4: Simplify right side
    798.16x = 1,435,952.85
  5. Step 5: Solve for x
    x = 1,435,952.85/798.16
  6. Step 6: Final answer
    x = 1,799.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.