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Finding the Fourth Proportional to 307,948.80, 461,923.20 and 265,958.40

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Solution

The fourth proportional to 307,948.80, 461,923.20 and 265,958.40 is: 398,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,948.80 : 461,923.20 = 265,958.40 : x
  2. Step 2: Convert to fraction form
    307,948.80/461,923.20 = 265,958.40/x
  3. Step 3: Cross multiply
    307,948.80x = 461,923.20 × 265,958.40
  4. Step 4: Simplify right side
    307,948.80x = 122,852,355,194.88
  5. Step 5: Solve for x
    x = 122,852,355,194.88/307,948.80
  6. Step 6: Final answer
    x = 398,937.60

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