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Finding the Fourth Proportional to 354,239.02, 531,475.18 and 143,820.46

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Solution

The fourth proportional to 354,239.02, 531,475.18 and 143,820.46 is: 215,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,239.02 : 531,475.18 = 143,820.46 : x
  2. Step 2: Convert to fraction form
    354,239.02/531,475.18 = 143,820.46/x
  3. Step 3: Cross multiply
    354,239.02x = 531,475.18 × 143,820.46
  4. Step 4: Simplify right side
    354,239.02x = 76,437,004,866.18
  5. Step 5: Solve for x
    x = 76,437,004,866.18/354,239.02
  6. Step 6: Final answer
    x = 215,778.05

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