Home / 287,203.16-396,329.66-159,876.02

Finding the Fourth Proportional to 287,203.16, 396,329.66 and 159,876.02

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Solution

The fourth proportional to 287,203.16, 396,329.66 and 159,876.02 is: 220,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,203.16 : 396,329.66 = 159,876.02 : x
  2. Step 2: Convert to fraction form
    287,203.16/396,329.66 = 159,876.02/x
  3. Step 3: Cross multiply
    287,203.16x = 396,329.66 × 159,876.02
  4. Step 4: Simplify right side
    287,203.16x = 63,363,608,648.75
  5. Step 5: Solve for x
    x = 63,363,608,648.75/287,203.16
  6. Step 6: Final answer
    x = 220,622.95

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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.