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Finding the Fourth Proportional to 248,639.80, 343,119.72 and 135,462.64

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Solution

The fourth proportional to 248,639.80, 343,119.72 and 135,462.64 is: 186,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,639.80 : 343,119.72 = 135,462.64 : x
  2. Step 2: Convert to fraction form
    248,639.80/343,119.72 = 135,462.64/x
  3. Step 3: Cross multiply
    248,639.80x = 343,119.72 × 135,462.64
  4. Step 4: Simplify right side
    248,639.80x = 46,479,903,107.26
  5. Step 5: Solve for x
    x = 46,479,903,107.26/248,639.80
  6. Step 6: Final answer
    x = 186,936.70

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