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Finding the Fourth Proportional to 391.02, 586.57 and 117.08

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Solution

The fourth proportional to 391.02, 586.57 and 117.08 is: 175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    391.02 : 586.57 = 117.08 : x
  2. Step 2: Convert to fraction form
    391.02/586.57 = 117.08/x
  3. Step 3: Cross multiply
    391.02x = 586.57 × 117.08
  4. Step 4: Simplify right side
    391.02x = 68,675.62
  5. Step 5: Solve for x
    x = 68,675.62/391.02
  6. Step 6: Final answer
    x = 175.63

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