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Finding the Fourth Proportional to 344.70, 516.11 and 222.66

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Solution

The fourth proportional to 344.70, 516.11 and 222.66 is: 333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.70 : 516.11 = 222.66 : x
  2. Step 2: Convert to fraction form
    344.70/516.11 = 222.66/x
  3. Step 3: Cross multiply
    344.70x = 516.11 × 222.66
  4. Step 4: Simplify right side
    344.70x = 114,915.94
  5. Step 5: Solve for x
    x = 114,915.94/344.70
  6. Step 6: Final answer
    x = 333.38

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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.