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Finding the Fourth Proportional to 223.32, 334.50 and 220.86

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Solution

The fourth proportional to 223.32, 334.50 and 220.86 is: 330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.32 : 334.50 = 220.86 : x
  2. Step 2: Convert to fraction form
    223.32/334.50 = 220.86/x
  3. Step 3: Cross multiply
    223.32x = 334.50 × 220.86
  4. Step 4: Simplify right side
    223.32x = 73,877.67
  5. Step 5: Solve for x
    x = 73,877.67/223.32
  6. Step 6: Final answer
    x = 330.82

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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.