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Finding the Fourth Proportional to 251.34, 377.17 and 249.28

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Solution

The fourth proportional to 251.34, 377.17 and 249.28 is: 374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.34 : 377.17 = 249.28 : x
  2. Step 2: Convert to fraction form
    251.34/377.17 = 249.28/x
  3. Step 3: Cross multiply
    251.34x = 377.17 × 249.28
  4. Step 4: Simplify right side
    251.34x = 94,017.81
  5. Step 5: Solve for x
    x = 94,017.81/251.34
  6. Step 6: Final answer
    x = 374.07

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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.