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Finding the Third Proportional to 313.24 and 475.56

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Solution

The third proportional to 313.24 and 475.56 is: 721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.24 : 475.56 = 475.56 : x
  2. Step 2: Convert to fraction form
    313.24/475.56 = 475.56/x
  3. Step 3: Cross multiply
    313.24x = 475.56 × 475.56
  4. Step 4: Simplify right side
    313.24x = 226,155.98
  5. Step 5: Solve for x
    x = 226,155.98/313.24
  6. Step 6: Final answer
    x = 721.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.