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Finding the Fourth Proportional to 287,647.02, 396,953.33 and 160,319.88

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Solution

The fourth proportional to 287,647.02, 396,953.33 and 160,319.88 is: 221,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,647.02 : 396,953.33 = 160,319.88 : x
  2. Step 2: Convert to fraction form
    287,647.02/396,953.33 = 160,319.88/x
  3. Step 3: Cross multiply
    287,647.02x = 396,953.33 × 160,319.88
  4. Step 4: Simplify right side
    287,647.02x = 63,639,509,429.60
  5. Step 5: Solve for x
    x = 63,639,509,429.60/287,647.02
  6. Step 6: Final answer
    x = 221,241.68

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