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Finding the Fourth Proportional to 228.15, 340.27 and 203.85

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Solution

The fourth proportional to 228.15, 340.27 and 203.85 is: 304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.15 : 340.27 = 203.85 : x
  2. Step 2: Convert to fraction form
    228.15/340.27 = 203.85/x
  3. Step 3: Cross multiply
    228.15x = 340.27 × 203.85
  4. Step 4: Simplify right side
    228.15x = 69,363.53
  5. Step 5: Solve for x
    x = 69,363.53/228.15
  6. Step 6: Final answer
    x = 304.03

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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.