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Finding the Fourth Proportional to 287,371.44, 396,582.48 and 166,512.96

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Solution

The fourth proportional to 287,371.44, 396,582.48 and 166,512.96 is: 229,793.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,371.44 : 396,582.48 = 166,512.96 : x
  2. Step 2: Convert to fraction form
    287,371.44/396,582.48 = 166,512.96/x
  3. Step 3: Cross multiply
    287,371.44x = 396,582.48 × 166,512.96
  4. Step 4: Simplify right side
    287,371.44x = 66,036,122,628.94
  5. Step 5: Solve for x
    x = 66,036,122,628.94/287,371.44
  6. Step 6: Final answer
    x = 229,793.62

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Why These Related Problems?

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