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Finding the Fourth Proportional to 344.25, 516.45 and 151.88

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Solution

The fourth proportional to 344.25, 516.45 and 151.88 is: 227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.25 : 516.45 = 151.88 : x
  2. Step 2: Convert to fraction form
    344.25/516.45 = 151.88/x
  3. Step 3: Cross multiply
    344.25x = 516.45 × 151.88
  4. Step 4: Simplify right side
    344.25x = 78,435.84
  5. Step 5: Solve for x
    x = 78,435.84/344.25
  6. Step 6: Final answer
    x = 227.85

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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.