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Finding the Fourth Proportional to 251.34, 376.26 and 153.54

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Solution

The fourth proportional to 251.34, 376.26 and 153.54 is: 229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.34 : 376.26 = 153.54 : x
  2. Step 2: Convert to fraction form
    251.34/376.26 = 153.54/x
  3. Step 3: Cross multiply
    251.34x = 376.26 × 153.54
  4. Step 4: Simplify right side
    251.34x = 57,770.96
  5. Step 5: Solve for x
    x = 57,770.96/251.34
  6. Step 6: Final answer
    x = 229.85

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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.