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Finding the Fourth Proportional to 457.08, 685.14 and 349.32

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Solution

The fourth proportional to 457.08, 685.14 and 349.32 is: 523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.08 : 685.14 = 349.32 : x
  2. Step 2: Convert to fraction form
    457.08/685.14 = 349.32/x
  3. Step 3: Cross multiply
    457.08x = 685.14 × 349.32
  4. Step 4: Simplify right side
    457.08x = 239,333.10
  5. Step 5: Solve for x
    x = 239,333.10/457.08
  6. Step 6: Final answer
    x = 523.61

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