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Finding the Fourth Proportional to 170.29, 255.47 and 79.02

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Solution

The fourth proportional to 170.29, 255.47 and 79.02 is: 118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.29 : 255.47 = 79.02 : x
  2. Step 2: Convert to fraction form
    170.29/255.47 = 79.02/x
  3. Step 3: Cross multiply
    170.29x = 255.47 × 79.02
  4. Step 4: Simplify right side
    170.29x = 20,186.84
  5. Step 5: Solve for x
    x = 20,186.84/170.29
  6. Step 6: Final answer
    x = 118.55

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