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Finding the Fourth Proportional to 329.11, 453.87 and 224.35

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Solution

The fourth proportional to 329.11, 453.87 and 224.35 is: 309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.11 : 453.87 = 224.35 : x
  2. Step 2: Convert to fraction form
    329.11/453.87 = 224.35/x
  3. Step 3: Cross multiply
    329.11x = 453.87 × 224.35
  4. Step 4: Simplify right side
    329.11x = 101,827.15
  5. Step 5: Solve for x
    x = 101,827.15/329.11
  6. Step 6: Final answer
    x = 309.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.