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Finding the Third Proportional to 326 and 702.88

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Solution

The third proportional to 326 and 702.88 is: 1,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326 : 702.88 = 702.88 : x
  2. Step 2: Convert to fraction form
    326/702.88 = 702.88/x
  3. Step 3: Cross multiply
    326x = 702.88 × 702.88
  4. Step 4: Simplify right side
    326x = 494,033.27
  5. Step 5: Solve for x
    x = 494,033.27/326
  6. Step 6: Final answer
    x = 1,515.44

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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.