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Finding the Fourth Proportional to 329.61, 454.91 and 224.81

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Solution

The fourth proportional to 329.61, 454.91 and 224.81 is: 310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.61 : 454.91 = 224.81 : x
  2. Step 2: Convert to fraction form
    329.61/454.91 = 224.81/x
  3. Step 3: Cross multiply
    329.61x = 454.91 × 224.81
  4. Step 4: Simplify right side
    329.61x = 102,264.92
  5. Step 5: Solve for x
    x = 102,264.92/329.61
  6. Step 6: Final answer
    x = 310.26

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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.