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Finding the Third Proportional to 231.19 and 346.69

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Solution

The third proportional to 231.19 and 346.69 is: 519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.19 : 346.69 = 346.69 : x
  2. Step 2: Convert to fraction form
    231.19/346.69 = 346.69/x
  3. Step 3: Cross multiply
    231.19x = 346.69 × 346.69
  4. Step 4: Simplify right side
    231.19x = 120,192.22
  5. Step 5: Solve for x
    x = 120,192.22/231.19
  6. Step 6: Final answer
    x = 519.89

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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.