Home / 200,028.80-276,076.68-128,498.24

Finding the Fourth Proportional to 200,028.80, 276,076.68 and 128,498.24

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Solution

The fourth proportional to 200,028.80, 276,076.68 and 128,498.24 is: 177,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,028.80 : 276,076.68 = 128,498.24 : x
  2. Step 2: Convert to fraction form
    200,028.80/276,076.68 = 128,498.24/x
  3. Step 3: Cross multiply
    200,028.80x = 276,076.68 × 128,498.24
  4. Step 4: Simplify right side
    200,028.80x = 35,475,367,485.04
  5. Step 5: Solve for x
    x = 35,475,367,485.04/200,028.80
  6. Step 6: Final answer
    x = 177,351.30

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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.