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Finding the Fourth Proportional to 252.92, 376.72 and 251.57

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Solution

The fourth proportional to 252.92, 376.72 and 251.57 is: 374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.92 : 376.72 = 251.57 : x
  2. Step 2: Convert to fraction form
    252.92/376.72 = 251.57/x
  3. Step 3: Cross multiply
    252.92x = 376.72 × 251.57
  4. Step 4: Simplify right side
    252.92x = 94,771.76
  5. Step 5: Solve for x
    x = 94,771.76/252.92
  6. Step 6: Final answer
    x = 374.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.