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Finding the Fourth Proportional to 251.94, 376.38 and 247.38

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Solution

The fourth proportional to 251.94, 376.38 and 247.38 is: 369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.94 : 376.38 = 247.38 : x
  2. Step 2: Convert to fraction form
    251.94/376.38 = 247.38/x
  3. Step 3: Cross multiply
    251.94x = 376.38 × 247.38
  4. Step 4: Simplify right side
    251.94x = 93,108.88
  5. Step 5: Solve for x
    x = 93,108.88/251.94
  6. Step 6: Final answer
    x = 369.57

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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.