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Finding the Fourth Proportional to 228.39, 340.92 and 201.05

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Solution

The fourth proportional to 228.39, 340.92 and 201.05 is: 300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.39 : 340.92 = 201.05 : x
  2. Step 2: Convert to fraction form
    228.39/340.92 = 201.05/x
  3. Step 3: Cross multiply
    228.39x = 340.92 × 201.05
  4. Step 4: Simplify right side
    228.39x = 68,542.06
  5. Step 5: Solve for x
    x = 68,542.06/228.39
  6. Step 6: Final answer
    x = 300.11

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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.