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Finding the Fourth Proportional to 249.21, 374.04 and 119.30

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Solution

The fourth proportional to 249.21, 374.04 and 119.30 is: 179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.21 : 374.04 = 119.30 : x
  2. Step 2: Convert to fraction form
    249.21/374.04 = 119.30/x
  3. Step 3: Cross multiply
    249.21x = 374.04 × 119.30
  4. Step 4: Simplify right side
    249.21x = 44,621.10
  5. Step 5: Solve for x
    x = 44,621.10/249.21
  6. Step 6: Final answer
    x = 179.05

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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.