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Finding the Third Proportional to 471.09 and 626.34

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Solution

The third proportional to 471.09 and 626.34 is: 832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.09 : 626.34 = 626.34 : x
  2. Step 2: Convert to fraction form
    471.09/626.34 = 626.34/x
  3. Step 3: Cross multiply
    471.09x = 626.34 × 626.34
  4. Step 4: Simplify right side
    471.09x = 392,306.49
  5. Step 5: Solve for x
    x = 392,306.49/471.09
  6. Step 6: Final answer
    x = 832.76

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.