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Finding the Fourth Proportional to 203.90, 306 and 112.67

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Solution

The fourth proportional to 203.90, 306 and 112.67 is: 169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.90 : 306 = 112.67 : x
  2. Step 2: Convert to fraction form
    203.90/306 = 112.67/x
  3. Step 3: Cross multiply
    203.90x = 306 × 112.67
  4. Step 4: Simplify right side
    203.90x = 34,477.79
  5. Step 5: Solve for x
    x = 34,477.79/203.90
  6. Step 6: Final answer
    x = 169.09

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