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Finding the Fourth Proportional to 280,656.39, 421,050.33 and 191,951.67

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Solution

The fourth proportional to 280,656.39, 421,050.33 and 191,951.67 is: 287,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,656.39 : 421,050.33 = 191,951.67 : x
  2. Step 2: Convert to fraction form
    280,656.39/421,050.33 = 191,951.67/x
  3. Step 3: Cross multiply
    280,656.39x = 421,050.33 × 191,951.67
  4. Step 4: Simplify right side
    280,656.39x = 80,821,313,997.55
  5. Step 5: Solve for x
    x = 80,821,313,997.55/280,656.39
  6. Step 6: Final answer
    x = 287,972.47

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