Home / 643,276.80-965,010.24-222,439.68

Finding the Fourth Proportional to 643,276.80, 965,010.24 and 222,439.68

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Solution

The fourth proportional to 643,276.80, 965,010.24 and 222,439.68 is: 333,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,276.80 : 965,010.24 = 222,439.68 : x
  2. Step 2: Convert to fraction form
    643,276.80/965,010.24 = 222,439.68/x
  3. Step 3: Cross multiply
    643,276.80x = 965,010.24 × 222,439.68
  4. Step 4: Simplify right side
    643,276.80x = 214,656,568,982.32
  5. Step 5: Solve for x
    x = 214,656,568,982.32/643,276.80
  6. Step 6: Final answer
    x = 333,692.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.