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Finding the Third Proportional to 86 and 223.25

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Solution

The third proportional to 86 and 223.25 is: 579.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86 : 223.25 = 223.25 : x
  2. Step 2: Convert to fraction form
    86/223.25 = 223.25/x
  3. Step 3: Cross multiply
    86x = 223.25 × 223.25
  4. Step 4: Simplify right side
    86x = 49,840.56
  5. Step 5: Solve for x
    x = 49,840.56/86
  6. Step 6: Final answer
    x = 579.54

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.