Home / 287,046.96-396,140.36-159,725.32

Finding the Fourth Proportional to 287,046.96, 396,140.36 and 159,725.32

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Solution

The fourth proportional to 287,046.96, 396,140.36 and 159,725.32 is: 220,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,046.96 : 396,140.36 = 159,725.32 : x
  2. Step 2: Convert to fraction form
    287,046.96/396,140.36 = 159,725.32/x
  3. Step 3: Cross multiply
    287,046.96x = 396,140.36 × 159,725.32
  4. Step 4: Simplify right side
    287,046.96x = 63,273,645,765.92
  5. Step 5: Solve for x
    x = 63,273,645,765.92/287,046.96
  6. Step 6: Final answer
    x = 220,429.60

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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.