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Finding the Fourth Proportional to 280,379.37, 420,574.95 and 100,476.51

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Solution

The fourth proportional to 280,379.37, 420,574.95 and 100,476.51 is: 150,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,379.37 : 420,574.95 = 100,476.51 : x
  2. Step 2: Convert to fraction form
    280,379.37/420,574.95 = 100,476.51/x
  3. Step 3: Cross multiply
    280,379.37x = 420,574.95 × 100,476.51
  4. Step 4: Simplify right side
    280,379.37x = 42,257,903,169.42
  5. Step 5: Solve for x
    x = 42,257,903,169.42/280,379.37
  6. Step 6: Final answer
    x = 150,716.88

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