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Finding the Fourth Proportional to 224.75, 336.91 and 109.06

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Solution

The fourth proportional to 224.75, 336.91 and 109.06 is: 163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.75 : 336.91 = 109.06 : x
  2. Step 2: Convert to fraction form
    224.75/336.91 = 109.06/x
  3. Step 3: Cross multiply
    224.75x = 336.91 × 109.06
  4. Step 4: Simplify right side
    224.75x = 36,742.85
  5. Step 5: Solve for x
    x = 36,742.85/224.75
  6. Step 6: Final answer
    x = 163.48

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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.