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Finding the Fourth Proportional to 249.40, 374.22 and 245.08

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Solution

The fourth proportional to 249.40, 374.22 and 245.08 is: 367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.40 : 374.22 = 245.08 : x
  2. Step 2: Convert to fraction form
    249.40/374.22 = 245.08/x
  3. Step 3: Cross multiply
    249.40x = 374.22 × 245.08
  4. Step 4: Simplify right side
    249.40x = 91,713.84
  5. Step 5: Solve for x
    x = 91,713.84/249.40
  6. Step 6: Final answer
    x = 367.74

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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.