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Finding the Fourth Proportional to 280,494.72, 420,750.59 and 109,709.62

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Solution

The fourth proportional to 280,494.72, 420,750.59 and 109,709.62 is: 164,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,494.72 : 420,750.59 = 109,709.62 : x
  2. Step 2: Convert to fraction form
    280,494.72/420,750.59 = 109,709.62/x
  3. Step 3: Cross multiply
    280,494.72x = 420,750.59 × 109,709.62
  4. Step 4: Simplify right side
    280,494.72x = 46,160,385,743.25
  5. Step 5: Solve for x
    x = 46,160,385,743.25/280,494.72
  6. Step 6: Final answer
    x = 164,567.75

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