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Finding the Fourth Proportional to 266.24, 399.05 and 111.93

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Solution

The fourth proportional to 266.24, 399.05 and 111.93 is: 167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.24 : 399.05 = 111.93 : x
  2. Step 2: Convert to fraction form
    266.24/399.05 = 111.93/x
  3. Step 3: Cross multiply
    266.24x = 399.05 × 111.93
  4. Step 4: Simplify right side
    266.24x = 44,665.39
  5. Step 5: Solve for x
    x = 44,665.39/266.24
  6. Step 6: Final answer
    x = 167.77

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