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Finding the Fourth Proportional to 249.83, 374.19 and 201.77

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Solution

The fourth proportional to 249.83, 374.19 and 201.77 is: 302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.83 : 374.19 = 201.77 : x
  2. Step 2: Convert to fraction form
    249.83/374.19 = 201.77/x
  3. Step 3: Cross multiply
    249.83x = 374.19 × 201.77
  4. Step 4: Simplify right side
    249.83x = 75,498.45
  5. Step 5: Solve for x
    x = 75,498.45/249.83
  6. Step 6: Final answer
    x = 302.21

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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.