Home / 257,577.09-355,589.91-200,087.61

Finding the Fourth Proportional to 257,577.09, 355,589.91 and 200,087.61

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Solution

The fourth proportional to 257,577.09, 355,589.91 and 200,087.61 is: 276,224.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,577.09 : 355,589.91 = 200,087.61 : x
  2. Step 2: Convert to fraction form
    257,577.09/355,589.91 = 200,087.61/x
  3. Step 3: Cross multiply
    257,577.09x = 355,589.91 × 200,087.61
  4. Step 4: Simplify right side
    257,577.09x = 71,149,135,232.02
  5. Step 5: Solve for x
    x = 71,149,135,232.02/257,577.09
  6. Step 6: Final answer
    x = 276,224.63

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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.