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Finding the Fourth Proportional to 541.67, 747.42 and 308.75

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Solution

The fourth proportional to 541.67, 747.42 and 308.75 is: 426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.67 : 747.42 = 308.75 : x
  2. Step 2: Convert to fraction form
    541.67/747.42 = 308.75/x
  3. Step 3: Cross multiply
    541.67x = 747.42 × 308.75
  4. Step 4: Simplify right side
    541.67x = 230,765.93
  5. Step 5: Solve for x
    x = 230,765.93/541.67
  6. Step 6: Final answer
    x = 426.03

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