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Finding the Fourth Proportional to 225.54, 336.08 and 201.31

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Solution

The fourth proportional to 225.54, 336.08 and 201.31 is: 299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.54 : 336.08 = 201.31 : x
  2. Step 2: Convert to fraction form
    225.54/336.08 = 201.31/x
  3. Step 3: Cross multiply
    225.54x = 336.08 × 201.31
  4. Step 4: Simplify right side
    225.54x = 67,654.42
  5. Step 5: Solve for x
    x = 67,654.42/225.54
  6. Step 6: Final answer
    x = 299.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.