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Finding the Fourth Proportional to 251.02, 376.11 and 154.63

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Solution

The fourth proportional to 251.02, 376.11 and 154.63 is: 231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.02 : 376.11 = 154.63 : x
  2. Step 2: Convert to fraction form
    251.02/376.11 = 154.63/x
  3. Step 3: Cross multiply
    251.02x = 376.11 × 154.63
  4. Step 4: Simplify right side
    251.02x = 58,157.89
  5. Step 5: Solve for x
    x = 58,157.89/251.02
  6. Step 6: Final answer
    x = 231.69

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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.