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Finding the Fourth Proportional to 224.12, 336.07 and 131.61

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Solution

The fourth proportional to 224.12, 336.07 and 131.61 is: 197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.12 : 336.07 = 131.61 : x
  2. Step 2: Convert to fraction form
    224.12/336.07 = 131.61/x
  3. Step 3: Cross multiply
    224.12x = 336.07 × 131.61
  4. Step 4: Simplify right side
    224.12x = 44,230.17
  5. Step 5: Solve for x
    x = 44,230.17/224.12
  6. Step 6: Final answer
    x = 197.35

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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.