Home / 283,998.53-391,919.23-154,936.61

Finding the Fourth Proportional to 283,998.53, 391,919.23 and 154,936.61

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Solution

The fourth proportional to 283,998.53, 391,919.23 and 154,936.61 is: 213,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,998.53 : 391,919.23 = 154,936.61 : x
  2. Step 2: Convert to fraction form
    283,998.53/391,919.23 = 154,936.61/x
  3. Step 3: Cross multiply
    283,998.53x = 391,919.23 × 154,936.61
  4. Step 4: Simplify right side
    283,998.53x = 60,722,636,890.01
  5. Step 5: Solve for x
    x = 60,722,636,890.01/283,998.53
  6. Step 6: Final answer
    x = 213,813.21

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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.