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Finding the Fourth Proportional to 198.04, 294.54 and 193.94

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Solution

The fourth proportional to 198.04, 294.54 and 193.94 is: 288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.04 : 294.54 = 193.94 : x
  2. Step 2: Convert to fraction form
    198.04/294.54 = 193.94/x
  3. Step 3: Cross multiply
    198.04x = 294.54 × 193.94
  4. Step 4: Simplify right side
    198.04x = 57,120.65
  5. Step 5: Solve for x
    x = 57,120.65/198.04
  6. Step 6: Final answer
    x = 288.44

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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.