Home / 313,268.22-431,983.26-185,919.21

Finding the Fourth Proportional to 313,268.22, 431,983.26 and 185,919.21

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Solution

The fourth proportional to 313,268.22, 431,983.26 and 185,919.21 is: 256,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,268.22 : 431,983.26 = 185,919.21 : x
  2. Step 2: Convert to fraction form
    313,268.22/431,983.26 = 185,919.21/x
  3. Step 3: Cross multiply
    313,268.22x = 431,983.26 × 185,919.21
  4. Step 4: Simplify right side
    313,268.22x = 80,313,986,432.42
  5. Step 5: Solve for x
    x = 80,313,986,432.42/313,268.22
  6. Step 6: Final answer
    x = 256,374.51

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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.