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Finding the Fourth Proportional to 662.52, 993.62 and 251.85

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Solution

The fourth proportional to 662.52, 993.62 and 251.85 is: 377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.52 : 993.62 = 251.85 : x
  2. Step 2: Convert to fraction form
    662.52/993.62 = 251.85/x
  3. Step 3: Cross multiply
    662.52x = 993.62 × 251.85
  4. Step 4: Simplify right side
    662.52x = 250,238.21
  5. Step 5: Solve for x
    x = 250,238.21/662.52
  6. Step 6: Final answer
    x = 377.71

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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.