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Finding the Third Proportional to 318 and 793

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Solution

The third proportional to 318 and 793 is: 1,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318 : 793 = 793 : x
  2. Step 2: Convert to fraction form
    318/793 = 793/x
  3. Step 3: Cross multiply
    318x = 793 × 793
  4. Step 4: Simplify right side
    318x = 628,849
  5. Step 5: Solve for x
    x = 628,849/318
  6. Step 6: Final answer
    x = 1,977.51

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.