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Finding the Fourth Proportional to 208,202.80, 287,319.54 and 112,709.48

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Solution

The fourth proportional to 208,202.80, 287,319.54 and 112,709.48 is: 155,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,202.80 : 287,319.54 = 112,709.48 : x
  2. Step 2: Convert to fraction form
    208,202.80/287,319.54 = 112,709.48/x
  3. Step 3: Cross multiply
    208,202.80x = 287,319.54 × 112,709.48
  4. Step 4: Simplify right side
    208,202.80x = 32,383,635,947.24
  5. Step 5: Solve for x
    x = 32,383,635,947.24/208,202.80
  6. Step 6: Final answer
    x = 155,538.91

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