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Finding the Fourth Proportional to 354,364.98, 489,142.17 and 211,169.94

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Solution

The fourth proportional to 354,364.98, 489,142.17 and 211,169.94 is: 291,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,364.98 : 489,142.17 = 211,169.94 : x
  2. Step 2: Convert to fraction form
    354,364.98/489,142.17 = 211,169.94/x
  3. Step 3: Cross multiply
    354,364.98x = 489,142.17 × 211,169.94
  4. Step 4: Simplify right side
    354,364.98x = 103,292,122,690.37
  5. Step 5: Solve for x
    x = 103,292,122,690.37/354,364.98
  6. Step 6: Final answer
    x = 291,485.13

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