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Finding the Fourth Proportional to 344.88, 516.60 and 223.20

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Solution

The fourth proportional to 344.88, 516.60 and 223.20 is: 334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.88 : 516.60 = 223.20 : x
  2. Step 2: Convert to fraction form
    344.88/516.60 = 223.20/x
  3. Step 3: Cross multiply
    344.88x = 516.60 × 223.20
  4. Step 4: Simplify right side
    344.88x = 115,305.12
  5. Step 5: Solve for x
    x = 115,305.12/344.88
  6. Step 6: Final answer
    x = 334.33

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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.