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Finding the Fourth Proportional to 240,400.80, 360,601.20 and 129,808.80

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Solution

The fourth proportional to 240,400.80, 360,601.20 and 129,808.80 is: 194,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,400.80 : 360,601.20 = 129,808.80 : x
  2. Step 2: Convert to fraction form
    240,400.80/360,601.20 = 129,808.80/x
  3. Step 3: Cross multiply
    240,400.80x = 360,601.20 × 129,808.80
  4. Step 4: Simplify right side
    240,400.80x = 46,809,209,050.56
  5. Step 5: Solve for x
    x = 46,809,209,050.56/240,400.80
  6. Step 6: Final answer
    x = 194,713.20

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