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Finding the Fourth Proportional to 248,507.80, 342,944.70 and 135,330.46

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Solution

The fourth proportional to 248,507.80, 342,944.70 and 135,330.46 is: 186,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,507.80 : 342,944.70 = 135,330.46 : x
  2. Step 2: Convert to fraction form
    248,507.80/342,944.70 = 135,330.46/x
  3. Step 3: Cross multiply
    248,507.80x = 342,944.70 × 135,330.46
  4. Step 4: Simplify right side
    248,507.80x = 46,410,864,005.56
  5. Step 5: Solve for x
    x = 46,410,864,005.56/248,507.80
  6. Step 6: Final answer
    x = 186,758.18

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