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Finding the Fourth Proportional to 344.60, 516.38 and 271.56

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Solution

The fourth proportional to 344.60, 516.38 and 271.56 is: 406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.60 : 516.38 = 271.56 : x
  2. Step 2: Convert to fraction form
    344.60/516.38 = 271.56/x
  3. Step 3: Cross multiply
    344.60x = 516.38 × 271.56
  4. Step 4: Simplify right side
    344.60x = 140,228.15
  5. Step 5: Solve for x
    x = 140,228.15/344.60
  6. Step 6: Final answer
    x = 406.93

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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.