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Finding the Fourth Proportional to 574.03, 791.57 and 374.91

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Solution

The fourth proportional to 574.03, 791.57 and 374.91 is: 516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.03 : 791.57 = 374.91 : x
  2. Step 2: Convert to fraction form
    574.03/791.57 = 374.91/x
  3. Step 3: Cross multiply
    574.03x = 791.57 × 374.91
  4. Step 4: Simplify right side
    574.03x = 296,765.48
  5. Step 5: Solve for x
    x = 296,765.48/574.03
  6. Step 6: Final answer
    x = 516.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.