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Finding the Fourth Proportional to 224.47, 334.48 and 218.19

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Solution

The fourth proportional to 224.47, 334.48 and 218.19 is: 325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.47 : 334.48 = 218.19 : x
  2. Step 2: Convert to fraction form
    224.47/334.48 = 218.19/x
  3. Step 3: Cross multiply
    224.47x = 334.48 × 218.19
  4. Step 4: Simplify right side
    224.47x = 72,980.19
  5. Step 5: Solve for x
    x = 72,980.19/224.47
  6. Step 6: Final answer
    x = 325.12

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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.