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Finding the Fourth Proportional to 354,636.48, 489,395.85 and 201,674.58

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Solution

The fourth proportional to 354,636.48, 489,395.85 and 201,674.58 is: 278,309.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,636.48 : 489,395.85 = 201,674.58 : x
  2. Step 2: Convert to fraction form
    354,636.48/489,395.85 = 201,674.58/x
  3. Step 3: Cross multiply
    354,636.48x = 489,395.85 × 201,674.58
  4. Step 4: Simplify right side
    354,636.48x = 98,698,702,502.49
  5. Step 5: Solve for x
    x = 98,698,702,502.49/354,636.48
  6. Step 6: Final answer
    x = 278,309.50

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