Home / 287,201.40-396,327.24-159,874.26

Finding the Fourth Proportional to 287,201.40, 396,327.24 and 159,874.26

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Solution

The fourth proportional to 287,201.40, 396,327.24 and 159,874.26 is: 220,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,201.40 : 396,327.24 = 159,874.26 : x
  2. Step 2: Convert to fraction form
    287,201.40/396,327.24 = 159,874.26/x
  3. Step 3: Cross multiply
    287,201.40x = 396,327.24 × 159,874.26
  4. Step 4: Simplify right side
    287,201.40x = 63,362,524,212.84
  5. Step 5: Solve for x
    x = 63,362,524,212.84/287,201.40
  6. Step 6: Final answer
    x = 220,620.53

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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.