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Finding the Fourth Proportional to 442.07, 662.85 and 181.77

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Solution

The fourth proportional to 442.07, 662.85 and 181.77 is: 272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.07 : 662.85 = 181.77 : x
  2. Step 2: Convert to fraction form
    442.07/662.85 = 181.77/x
  3. Step 3: Cross multiply
    442.07x = 662.85 × 181.77
  4. Step 4: Simplify right side
    442.07x = 120,488.05
  5. Step 5: Solve for x
    x = 120,488.05/442.07
  6. Step 6: Final answer
    x = 272.56

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