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Finding the Fourth Proportional to 224.12, 334.13 and 218.51

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Solution

The fourth proportional to 224.12, 334.13 and 218.51 is: 325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.12 : 334.13 = 218.51 : x
  2. Step 2: Convert to fraction form
    224.12/334.13 = 218.51/x
  3. Step 3: Cross multiply
    224.12x = 334.13 × 218.51
  4. Step 4: Simplify right side
    224.12x = 73,010.75
  5. Step 5: Solve for x
    x = 73,010.75/224.12
  6. Step 6: Final answer
    x = 325.77

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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.