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Finding the Fourth Proportional to 378,459.36, 522,078.48 and 235,164.96

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Solution

The fourth proportional to 378,459.36, 522,078.48 and 235,164.96 is: 324,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,459.36 : 522,078.48 = 235,164.96 : x
  2. Step 2: Convert to fraction form
    378,459.36/522,078.48 = 235,164.96/x
  3. Step 3: Cross multiply
    378,459.36x = 522,078.48 × 235,164.96
  4. Step 4: Simplify right side
    378,459.36x = 122,774,564,866.06
  5. Step 5: Solve for x
    x = 122,774,564,866.06/378,459.36
  6. Step 6: Final answer
    x = 324,406.21

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