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Finding the Fourth Proportional to 237.21, 355.82 and 74.91

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Solution

The fourth proportional to 237.21, 355.82 and 74.91 is: 112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.21 : 355.82 = 74.91 : x
  2. Step 2: Convert to fraction form
    237.21/355.82 = 74.91/x
  3. Step 3: Cross multiply
    237.21x = 355.82 × 74.91
  4. Step 4: Simplify right side
    237.21x = 26,652.77
  5. Step 5: Solve for x
    x = 26,652.77/237.21
  6. Step 6: Final answer
    x = 112.36

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