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Finding the Fourth Proportional to 159.36, 238.77 and 136.41

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Solution

The fourth proportional to 159.36, 238.77 and 136.41 is: 204.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.36 : 238.77 = 136.41 : x
  2. Step 2: Convert to fraction form
    159.36/238.77 = 136.41/x
  3. Step 3: Cross multiply
    159.36x = 238.77 × 136.41
  4. Step 4: Simplify right side
    159.36x = 32,570.62
  5. Step 5: Solve for x
    x = 32,570.62/159.36
  6. Step 6: Final answer
    x = 204.38

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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.