Home / 200,392.27-276,728.66-128,896.41

Finding the Fourth Proportional to 200,392.27, 276,728.66 and 128,896.41

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Solution

The fourth proportional to 200,392.27, 276,728.66 and 128,896.41 is: 177,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,392.27 : 276,728.66 = 128,896.41 : x
  2. Step 2: Convert to fraction form
    200,392.27/276,728.66 = 128,896.41/x
  3. Step 3: Cross multiply
    200,392.27x = 276,728.66 × 128,896.41
  4. Step 4: Simplify right side
    200,392.27x = 35,669,330,818.11
  5. Step 5: Solve for x
    x = 35,669,330,818.11/200,392.27
  6. Step 6: Final answer
    x = 177,997.54

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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.