Home / 287,103.87-396,216.33-166,250.43

Finding the Fourth Proportional to 287,103.87, 396,216.33 and 166,250.43

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Solution

The fourth proportional to 287,103.87, 396,216.33 and 166,250.43 is: 229,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,103.87 : 396,216.33 = 166,250.43 : x
  2. Step 2: Convert to fraction form
    287,103.87/396,216.33 = 166,250.43/x
  3. Step 3: Cross multiply
    287,103.87x = 396,216.33 × 166,250.43
  4. Step 4: Simplify right side
    287,103.87x = 65,871,135,235.52
  5. Step 5: Solve for x
    x = 65,871,135,235.52/287,103.87
  6. Step 6: Final answer
    x = 229,433.12

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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.