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Finding the Fourth Proportional to 225, 336.70 and 163.37

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Solution

The fourth proportional to 225, 336.70 and 163.37 is: 244.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    225 : 336.70 = 163.37 : x
  2. Step 2: Convert to fraction form
    225/336.70 = 163.37/x
  3. Step 3: Cross multiply
    225x = 336.70 × 163.37
  4. Step 4: Simplify right side
    225x = 55,007.11
  5. Step 5: Solve for x
    x = 55,007.11/225
  6. Step 6: Final answer
    x = 244.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.