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Finding the Fourth Proportional to 287,027.88, 396,062.82 and 159,694.44

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Solution

The fourth proportional to 287,027.88, 396,062.82 and 159,694.44 is: 220,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,027.88 : 396,062.82 = 159,694.44 : x
  2. Step 2: Convert to fraction form
    287,027.88/396,062.82 = 159,694.44/x
  3. Step 3: Cross multiply
    287,027.88x = 396,062.82 × 159,694.44
  4. Step 4: Simplify right side
    287,027.88x = 63,249,030,244.72
  5. Step 5: Solve for x
    x = 63,249,030,244.72/287,027.88
  6. Step 6: Final answer
    x = 220,358.49

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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.