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Finding the Fourth Proportional to 242.08, 363.08 and 79.77

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Solution

The fourth proportional to 242.08, 363.08 and 79.77 is: 119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.08 : 363.08 = 79.77 : x
  2. Step 2: Convert to fraction form
    242.08/363.08 = 79.77/x
  3. Step 3: Cross multiply
    242.08x = 363.08 × 79.77
  4. Step 4: Simplify right side
    242.08x = 28,961.08
  5. Step 5: Solve for x
    x = 28,961.08/242.08
  6. Step 6: Final answer
    x = 119.63

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