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Finding the Fourth Proportional to 498.04, 687.36 and 301.55

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Solution

The fourth proportional to 498.04, 687.36 and 301.55 is: 416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.04 : 687.36 = 301.55 : x
  2. Step 2: Convert to fraction form
    498.04/687.36 = 301.55/x
  3. Step 3: Cross multiply
    498.04x = 687.36 × 301.55
  4. Step 4: Simplify right side
    498.04x = 207,273.41
  5. Step 5: Solve for x
    x = 207,273.41/498.04
  6. Step 6: Final answer
    x = 416.18

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