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Finding the Fourth Proportional to 287,167.92, 396,244.44 and 159,840.24

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Solution

The fourth proportional to 287,167.92, 396,244.44 and 159,840.24 is: 220,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,167.92 : 396,244.44 = 159,840.24 : x
  2. Step 2: Convert to fraction form
    287,167.92/396,244.44 = 159,840.24/x
  3. Step 3: Cross multiply
    287,167.92x = 396,244.44 × 159,840.24
  4. Step 4: Simplify right side
    287,167.92x = 63,335,806,388.27
  5. Step 5: Solve for x
    x = 63,335,806,388.27/287,167.92
  6. Step 6: Final answer
    x = 220,553.21

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1.5x scale

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.