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Finding the Third Proportional to 223 and 313

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Solution

The third proportional to 223 and 313 is: 439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223 : 313 = 313 : x
  2. Step 2: Convert to fraction form
    223/313 = 313/x
  3. Step 3: Cross multiply
    223x = 313 × 313
  4. Step 4: Simplify right side
    223x = 97,969
  5. Step 5: Solve for x
    x = 97,969/223
  6. Step 6: Final answer
    x = 439.32

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.