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Finding the Third Proportional to 518.06 and 743.34

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Solution

The third proportional to 518.06 and 743.34 is: 1,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.06 : 743.34 = 743.34 : x
  2. Step 2: Convert to fraction form
    518.06/743.34 = 743.34/x
  3. Step 3: Cross multiply
    518.06x = 743.34 × 743.34
  4. Step 4: Simplify right side
    518.06x = 552,559.93
  5. Step 5: Solve for x
    x = 552,559.93/518.06
  6. Step 6: Final answer
    x = 1,066.59

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.