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Finding the Third Proportional to 350.26 and 515.43

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Solution

The third proportional to 350.26 and 515.43 is: 758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.26 : 515.43 = 515.43 : x
  2. Step 2: Convert to fraction form
    350.26/515.43 = 515.43/x
  3. Step 3: Cross multiply
    350.26x = 515.43 × 515.43
  4. Step 4: Simplify right side
    350.26x = 265,663.74
  5. Step 5: Solve for x
    x = 265,663.74/350.26
  6. Step 6: Final answer
    x = 758.47

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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.