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Finding the Fourth Proportional to 238.57, 357.84 and 67.57

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Solution

The fourth proportional to 238.57, 357.84 and 67.57 is: 101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.57 : 357.84 = 67.57 : x
  2. Step 2: Convert to fraction form
    238.57/357.84 = 67.57/x
  3. Step 3: Cross multiply
    238.57x = 357.84 × 67.57
  4. Step 4: Simplify right side
    238.57x = 24,179.25
  5. Step 5: Solve for x
    x = 24,179.25/238.57
  6. Step 6: Final answer
    x = 101.35

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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.