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Finding the Third Proportional to 451.71 and 682.37

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Solution

The third proportional to 451.71 and 682.37 is: 1,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.71 : 682.37 = 682.37 : x
  2. Step 2: Convert to fraction form
    451.71/682.37 = 682.37/x
  3. Step 3: Cross multiply
    451.71x = 682.37 × 682.37
  4. Step 4: Simplify right side
    451.71x = 465,628.31
  5. Step 5: Solve for x
    x = 465,628.31/451.71
  6. Step 6: Final answer
    x = 1,030.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.