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Finding the Fourth Proportional to 287,313.36, 396,493.02 and 159,993.51

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Solution

The fourth proportional to 287,313.36, 396,493.02 and 159,993.51 is: 220,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,313.36 : 396,493.02 = 159,993.51 : x
  2. Step 2: Convert to fraction form
    287,313.36/396,493.02 = 159,993.51/x
  3. Step 3: Cross multiply
    287,313.36x = 396,493.02 × 159,993.51
  4. Step 4: Simplify right side
    287,313.36x = 63,436,309,960.30
  5. Step 5: Solve for x
    x = 63,436,309,960.30/287,313.36
  6. Step 6: Final answer
    x = 220,791.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.