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Finding the Fourth Proportional to 354,955.20, 532,238.40 and 144,355.20

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Solution

The fourth proportional to 354,955.20, 532,238.40 and 144,355.20 is: 216,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,955.20 : 532,238.40 = 144,355.20 : x
  2. Step 2: Convert to fraction form
    354,955.20/532,238.40 = 144,355.20/x
  3. Step 3: Cross multiply
    354,955.20x = 532,238.40 × 144,355.20
  4. Step 4: Simplify right side
    354,955.20x = 76,831,380,679.68
  5. Step 5: Solve for x
    x = 76,831,380,679.68/354,955.20
  6. Step 6: Final answer
    x = 216,453.74

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