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Finding the Fourth Proportional to 248,419.80, 342,820.62 and 135,243.36

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Solution

The fourth proportional to 248,419.80, 342,820.62 and 135,243.36 is: 186,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,419.80 : 342,820.62 = 135,243.36 : x
  2. Step 2: Convert to fraction form
    248,419.80/342,820.62 = 135,243.36/x
  3. Step 3: Cross multiply
    248,419.80x = 342,820.62 × 135,243.36
  4. Step 4: Simplify right side
    248,419.80x = 46,364,212,526.08
  5. Step 5: Solve for x
    x = 46,364,212,526.08/248,419.80
  6. Step 6: Final answer
    x = 186,636.54

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