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Finding the Fourth Proportional to 249.99, 374.91 and 119.90

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Solution

The fourth proportional to 249.99, 374.91 and 119.90 is: 179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.99 : 374.91 = 119.90 : x
  2. Step 2: Convert to fraction form
    249.99/374.91 = 119.90/x
  3. Step 3: Cross multiply
    249.99x = 374.91 × 119.90
  4. Step 4: Simplify right side
    249.99x = 44,950.76
  5. Step 5: Solve for x
    x = 44,950.76/249.99
  6. Step 6: Final answer
    x = 179.81

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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.