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Finding the Fourth Proportional to 313,426.20, 470,340.90 and 173,285.40

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Solution

The fourth proportional to 313,426.20, 470,340.90 and 173,285.40 is: 260,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,426.20 : 470,340.90 = 173,285.40 : x
  2. Step 2: Convert to fraction form
    313,426.20/470,340.90 = 173,285.40/x
  3. Step 3: Cross multiply
    313,426.20x = 470,340.90 × 173,285.40
  4. Step 4: Simplify right side
    313,426.20x = 81,503,210,992.86
  5. Step 5: Solve for x
    x = 81,503,210,992.86/313,426.20
  6. Step 6: Final answer
    x = 260,039.56

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