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Finding the Fourth Proportional to 344.81, 516.33 and 190.56

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Solution

The fourth proportional to 344.81, 516.33 and 190.56 is: 285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.81 : 516.33 = 190.56 : x
  2. Step 2: Convert to fraction form
    344.81/516.33 = 190.56/x
  3. Step 3: Cross multiply
    344.81x = 516.33 × 190.56
  4. Step 4: Simplify right side
    344.81x = 98,393.78
  5. Step 5: Solve for x
    x = 98,393.78/344.81
  6. Step 6: Final answer
    x = 285.36

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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.