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Finding the Fourth Proportional to 336.74, 505.00 and 131.16

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Solution

The fourth proportional to 336.74, 505.00 and 131.16 is: 196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.74 : 505.00 = 131.16 : x
  2. Step 2: Convert to fraction form
    336.74/505.00 = 131.16/x
  3. Step 3: Cross multiply
    336.74x = 505.00 × 131.16
  4. Step 4: Simplify right side
    336.74x = 66,235.47
  5. Step 5: Solve for x
    x = 66,235.47/336.74
  6. Step 6: Final answer
    x = 196.70

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