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Finding the Fourth Proportional to 353,076.40, 529,614.60 and 211,358.80

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Solution

The fourth proportional to 353,076.40, 529,614.60 and 211,358.80 is: 317,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,076.40 : 529,614.60 = 211,358.80 : x
  2. Step 2: Convert to fraction form
    353,076.40/529,614.60 = 211,358.80/x
  3. Step 3: Cross multiply
    353,076.40x = 529,614.60 × 211,358.80
  4. Step 4: Simplify right side
    353,076.40x = 111,938,706,318.48
  5. Step 5: Solve for x
    x = 111,938,706,318.48/353,076.40
  6. Step 6: Final answer
    x = 317,038.20

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