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Finding the Third Proportional to 268.50 and 425.44

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Solution

The third proportional to 268.50 and 425.44 is: 674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.50 : 425.44 = 425.44 : x
  2. Step 2: Convert to fraction form
    268.50/425.44 = 425.44/x
  3. Step 3: Cross multiply
    268.50x = 425.44 × 425.44
  4. Step 4: Simplify right side
    268.50x = 180,997.07
  5. Step 5: Solve for x
    x = 180,997.07/268.50
  6. Step 6: Final answer
    x = 674.10

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.