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Finding the Fourth Proportional to 287,212.96, 396,060.02 and 190,383.08

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Solution

The fourth proportional to 287,212.96, 396,060.02 and 190,383.08 is: 262,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,212.96 : 396,060.02 = 190,383.08 : x
  2. Step 2: Convert to fraction form
    287,212.96/396,060.02 = 190,383.08/x
  3. Step 3: Cross multiply
    287,212.96x = 396,060.02 × 190,383.08
  4. Step 4: Simplify right side
    287,212.96x = 75,403,126,472.46
  5. Step 5: Solve for x
    x = 75,403,126,472.46/287,212.96
  6. Step 6: Final answer
    x = 262,533.86

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