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Finding the Fourth Proportional to 457.03, 685.45 and 132.32

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Solution

The fourth proportional to 457.03, 685.45 and 132.32 is: 198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.03 : 685.45 = 132.32 : x
  2. Step 2: Convert to fraction form
    457.03/685.45 = 132.32/x
  3. Step 3: Cross multiply
    457.03x = 685.45 × 132.32
  4. Step 4: Simplify right side
    457.03x = 90,698.74
  5. Step 5: Solve for x
    x = 90,698.74/457.03
  6. Step 6: Final answer
    x = 198.45

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