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Finding the Fourth Proportional to 541.48, 747.24 and 308.60

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Solution

The fourth proportional to 541.48, 747.24 and 308.60 is: 425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.48 : 747.24 = 308.60 : x
  2. Step 2: Convert to fraction form
    541.48/747.24 = 308.60/x
  3. Step 3: Cross multiply
    541.48x = 747.24 × 308.60
  4. Step 4: Simplify right side
    541.48x = 230,598.26
  5. Step 5: Solve for x
    x = 230,598.26/541.48
  6. Step 6: Final answer
    x = 425.87

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