Home / 287,269.82-396,444.60-159,945.38

Finding the Fourth Proportional to 287,269.82, 396,444.60 and 159,945.38

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Solution

The fourth proportional to 287,269.82, 396,444.60 and 159,945.38 is: 220,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,269.82 : 396,444.60 = 159,945.38 : x
  2. Step 2: Convert to fraction form
    287,269.82/396,444.60 = 159,945.38/x
  3. Step 3: Cross multiply
    287,269.82x = 396,444.60 × 159,945.38
  4. Step 4: Simplify right side
    287,269.82x = 63,409,480,213.73
  5. Step 5: Solve for x
    x = 63,409,480,213.73/287,269.82
  6. Step 6: Final answer
    x = 220,731.44

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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.