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Finding the Fourth Proportional to 471.85, 707.81 and 125.18

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Solution

The fourth proportional to 471.85, 707.81 and 125.18 is: 187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.85 : 707.81 = 125.18 : x
  2. Step 2: Convert to fraction form
    471.85/707.81 = 125.18/x
  3. Step 3: Cross multiply
    471.85x = 707.81 × 125.18
  4. Step 4: Simplify right side
    471.85x = 88,605.43
  5. Step 5: Solve for x
    x = 88,605.43/471.85
  6. Step 6: Final answer
    x = 187.78

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