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Finding the Third Proportional to 230.87 and 338.66

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Solution

The third proportional to 230.87 and 338.66 is: 496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.87 : 338.66 = 338.66 : x
  2. Step 2: Convert to fraction form
    230.87/338.66 = 338.66/x
  3. Step 3: Cross multiply
    230.87x = 338.66 × 338.66
  4. Step 4: Simplify right side
    230.87x = 114,690.70
  5. Step 5: Solve for x
    x = 114,690.70/230.87
  6. Step 6: Final answer
    x = 496.77

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.