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Finding the Third Proportional to 304.88 and 658.69

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Solution

The third proportional to 304.88 and 658.69 is: 1,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.88 : 658.69 = 658.69 : x
  2. Step 2: Convert to fraction form
    304.88/658.69 = 658.69/x
  3. Step 3: Cross multiply
    304.88x = 658.69 × 658.69
  4. Step 4: Simplify right side
    304.88x = 433,869.22
  5. Step 5: Solve for x
    x = 433,869.22/304.88
  6. Step 6: Final answer
    x = 1,423.11

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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.