Home / 257,571.09-355,581.63-200,081.61

Finding the Fourth Proportional to 257,571.09, 355,581.63 and 200,081.61

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Solution

The fourth proportional to 257,571.09, 355,581.63 and 200,081.61 is: 276,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,571.09 : 355,581.63 = 200,081.61 : x
  2. Step 2: Convert to fraction form
    257,571.09/355,581.63 = 200,081.61/x
  3. Step 3: Cross multiply
    257,571.09x = 355,581.63 × 200,081.61
  4. Step 4: Simplify right side
    257,571.09x = 71,145,345,016.82
  5. Step 5: Solve for x
    x = 71,145,345,016.82/257,571.09
  6. Step 6: Final answer
    x = 276,216.34

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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.