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Finding the Third Proportional to 143.44 and 222.66

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Solution

The third proportional to 143.44 and 222.66 is: 345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.44 : 222.66 = 222.66 : x
  2. Step 2: Convert to fraction form
    143.44/222.66 = 222.66/x
  3. Step 3: Cross multiply
    143.44x = 222.66 × 222.66
  4. Step 4: Simplify right side
    143.44x = 49,575.81
  5. Step 5: Solve for x
    x = 49,575.81/143.44
  6. Step 6: Final answer
    x = 345.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.