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Finding the Fourth Proportional to 251.81, 376.00 and 225.62

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Solution

The fourth proportional to 251.81, 376.00 and 225.62 is: 336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.81 : 376.00 = 225.62 : x
  2. Step 2: Convert to fraction form
    251.81/376.00 = 225.62/x
  3. Step 3: Cross multiply
    251.81x = 376.00 × 225.62
  4. Step 4: Simplify right side
    251.81x = 84,830.39
  5. Step 5: Solve for x
    x = 84,830.39/251.81
  6. Step 6: Final answer
    x = 336.88

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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.