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Finding the Fourth Proportional to 198.69, 297.56 and 158.13

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Solution

The fourth proportional to 198.69, 297.56 and 158.13 is: 236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.69 : 297.56 = 158.13 : x
  2. Step 2: Convert to fraction form
    198.69/297.56 = 158.13/x
  3. Step 3: Cross multiply
    198.69x = 297.56 × 158.13
  4. Step 4: Simplify right side
    198.69x = 47,052.37
  5. Step 5: Solve for x
    x = 47,052.37/198.69
  6. Step 6: Final answer
    x = 236.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.