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Finding the Third Proportional to 222.38 and 336.75

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Solution

The third proportional to 222.38 and 336.75 is: 509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.38 : 336.75 = 336.75 : x
  2. Step 2: Convert to fraction form
    222.38/336.75 = 336.75/x
  3. Step 3: Cross multiply
    222.38x = 336.75 × 336.75
  4. Step 4: Simplify right side
    222.38x = 113,400.56
  5. Step 5: Solve for x
    x = 113,400.56/222.38
  6. Step 6: Final answer
    x = 509.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.