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Finding the Fourth Proportional to 224.39, 334.38 and 218.13

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Solution

The fourth proportional to 224.39, 334.38 and 218.13 is: 325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.39 : 334.38 = 218.13 : x
  2. Step 2: Convert to fraction form
    224.39/334.38 = 218.13/x
  3. Step 3: Cross multiply
    224.39x = 334.38 × 218.13
  4. Step 4: Simplify right side
    224.39x = 72,938.31
  5. Step 5: Solve for x
    x = 72,938.31/224.39
  6. Step 6: Final answer
    x = 325.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.