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Finding the Fourth Proportional to 178.68, 268.05 and 56.94

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Solution

The fourth proportional to 178.68, 268.05 and 56.94 is: 85.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.68 : 268.05 = 56.94 : x
  2. Step 2: Convert to fraction form
    178.68/268.05 = 56.94/x
  3. Step 3: Cross multiply
    178.68x = 268.05 × 56.94
  4. Step 4: Simplify right side
    178.68x = 15,262.98
  5. Step 5: Solve for x
    x = 15,262.98/178.68
  6. Step 6: Final answer
    x = 85.42

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