Home / 200,220.73-276,305.39-128,601.37

Finding the Fourth Proportional to 200,220.73, 276,305.39 and 128,601.37

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Solution

The fourth proportional to 200,220.73, 276,305.39 and 128,601.37 is: 177,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,220.73 : 276,305.39 = 128,601.37 : x
  2. Step 2: Convert to fraction form
    200,220.73/276,305.39 = 128,601.37/x
  3. Step 3: Cross multiply
    200,220.73x = 276,305.39 × 128,601.37
  4. Step 4: Simplify right side
    200,220.73x = 35,533,251,692.38
  5. Step 5: Solve for x
    x = 35,533,251,692.38/200,220.73
  6. Step 6: Final answer
    x = 177,470.39

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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.