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Finding the Third Proportional to 222.75 and 343.69

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Solution

The third proportional to 222.75 and 343.69 is: 530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.75 : 343.69 = 343.69 : x
  2. Step 2: Convert to fraction form
    222.75/343.69 = 343.69/x
  3. Step 3: Cross multiply
    222.75x = 343.69 × 343.69
  4. Step 4: Simplify right side
    222.75x = 118,121.10
  5. Step 5: Solve for x
    x = 118,121.10/222.75
  6. Step 6: Final answer
    x = 530.29

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.