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Finding the Fourth Proportional to 397.39, 596.19 and 154

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Solution

The fourth proportional to 397.39, 596.19 and 154 is: 231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.39 : 596.19 = 154 : x
  2. Step 2: Convert to fraction form
    397.39/596.19 = 154/x
  3. Step 3: Cross multiply
    397.39x = 596.19 × 154
  4. Step 4: Simplify right side
    397.39x = 91,813.26
  5. Step 5: Solve for x
    x = 91,813.26/397.39
  6. Step 6: Final answer
    x = 231.04

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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.