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Finding the Third Proportional to 481.31 and 662.91

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Solution

The third proportional to 481.31 and 662.91 is: 913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.31 : 662.91 = 662.91 : x
  2. Step 2: Convert to fraction form
    481.31/662.91 = 662.91/x
  3. Step 3: Cross multiply
    481.31x = 662.91 × 662.91
  4. Step 4: Simplify right side
    481.31x = 439,444.70
  5. Step 5: Solve for x
    x = 439,444.70/481.31
  6. Step 6: Final answer
    x = 913.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.