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Finding the Fourth Proportional to 223.46, 334.89 and 216.89

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Solution

The fourth proportional to 223.46, 334.89 and 216.89 is: 325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.46 : 334.89 = 216.89 : x
  2. Step 2: Convert to fraction form
    223.46/334.89 = 216.89/x
  3. Step 3: Cross multiply
    223.46x = 334.89 × 216.89
  4. Step 4: Simplify right side
    223.46x = 72,634.29
  5. Step 5: Solve for x
    x = 72,634.29/223.46
  6. Step 6: Final answer
    x = 325.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.