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Finding the Fourth Proportional to 251.33, 376.52 and 242.21

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Solution

The fourth proportional to 251.33, 376.52 and 242.21 is: 362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.33 : 376.52 = 242.21 : x
  2. Step 2: Convert to fraction form
    251.33/376.52 = 242.21/x
  3. Step 3: Cross multiply
    251.33x = 376.52 × 242.21
  4. Step 4: Simplify right side
    251.33x = 91,193.82
  5. Step 5: Solve for x
    x = 91,193.82/251.33
  6. Step 6: Final answer
    x = 362.85

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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.