Home / 283,997.53-391,917.85-154,935.61

Finding the Fourth Proportional to 283,997.53, 391,917.85 and 154,935.61

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Solution

The fourth proportional to 283,997.53, 391,917.85 and 154,935.61 is: 213,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,997.53 : 391,917.85 = 154,935.61 : x
  2. Step 2: Convert to fraction form
    283,997.53/391,917.85 = 154,935.61/x
  3. Step 3: Cross multiply
    283,997.53x = 391,917.85 × 154,935.61
  4. Step 4: Simplify right side
    283,997.53x = 60,722,029,200.05
  5. Step 5: Solve for x
    x = 60,722,029,200.05/283,997.53
  6. Step 6: Final answer
    x = 213,811.83

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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.