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Finding the Fourth Proportional to 280,193.64, 420,289.38 and 167,907.66

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Solution

The fourth proportional to 280,193.64, 420,289.38 and 167,907.66 is: 251,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,193.64 : 420,289.38 = 167,907.66 : x
  2. Step 2: Convert to fraction form
    280,193.64/420,289.38 = 167,907.66/x
  3. Step 3: Cross multiply
    280,193.64x = 420,289.38 × 167,907.66
  4. Step 4: Simplify right side
    280,193.64x = 70,569,806,318.65
  5. Step 5: Solve for x
    x = 70,569,806,318.65/280,193.64
  6. Step 6: Final answer
    x = 251,860.84

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