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Finding the Third Proportional to 123 and 264

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Solution

The third proportional to 123 and 264 is: 566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123 : 264 = 264 : x
  2. Step 2: Convert to fraction form
    123/264 = 264/x
  3. Step 3: Cross multiply
    123x = 264 × 264
  4. Step 4: Simplify right side
    123x = 69,696
  5. Step 5: Solve for x
    x = 69,696/123
  6. Step 6: Final answer
    x = 566.63

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.