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Finding the Fourth Proportional to 198.16, 295.49 and 190.48

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Solution

The fourth proportional to 198.16, 295.49 and 190.48 is: 284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.16 : 295.49 = 190.48 : x
  2. Step 2: Convert to fraction form
    198.16/295.49 = 190.48/x
  3. Step 3: Cross multiply
    198.16x = 295.49 × 190.48
  4. Step 4: Simplify right side
    198.16x = 56,284.94
  5. Step 5: Solve for x
    x = 56,284.94/198.16
  6. Step 6: Final answer
    x = 284.04

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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.