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Finding the Fourth Proportional to 223.17, 334.22 and 220.74

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Solution

The fourth proportional to 223.17, 334.22 and 220.74 is: 330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.17 : 334.22 = 220.74 : x
  2. Step 2: Convert to fraction form
    223.17/334.22 = 220.74/x
  3. Step 3: Cross multiply
    223.17x = 334.22 × 220.74
  4. Step 4: Simplify right side
    223.17x = 73,774.62
  5. Step 5: Solve for x
    x = 73,774.62/223.17
  6. Step 6: Final answer
    x = 330.58

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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.