Home / 287,149.41-396,279.45-159,833.25

Finding the Fourth Proportional to 287,149.41, 396,279.45 and 159,833.25

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Solution

The fourth proportional to 287,149.41, 396,279.45 and 159,833.25 is: 220,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,149.41 : 396,279.45 = 159,833.25 : x
  2. Step 2: Convert to fraction form
    287,149.41/396,279.45 = 159,833.25/x
  3. Step 3: Cross multiply
    287,149.41x = 396,279.45 × 159,833.25
  4. Step 4: Simplify right side
    287,149.41x = 63,338,632,401.71
  5. Step 5: Solve for x
    x = 63,338,632,401.71/287,149.41
  6. Step 6: Final answer
    x = 220,577.27

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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.