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Finding the Fourth Proportional to 201.91, 303.41 and 154.39

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Solution

The fourth proportional to 201.91, 303.41 and 154.39 is: 232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.91 : 303.41 = 154.39 : x
  2. Step 2: Convert to fraction form
    201.91/303.41 = 154.39/x
  3. Step 3: Cross multiply
    201.91x = 303.41 × 154.39
  4. Step 4: Simplify right side
    201.91x = 46,843.47
  5. Step 5: Solve for x
    x = 46,843.47/201.91
  6. Step 6: Final answer
    x = 232.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.