Home / 283,623.12-391,408.56-162,786.42

Finding the Fourth Proportional to 283,623.12, 391,408.56 and 162,786.42

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Solution

The fourth proportional to 283,623.12, 391,408.56 and 162,786.42 is: 224,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,623.12 : 391,408.56 = 162,786.42 : x
  2. Step 2: Convert to fraction form
    283,623.12/391,408.56 = 162,786.42/x
  3. Step 3: Cross multiply
    283,623.12x = 391,408.56 × 162,786.42
  4. Step 4: Simplify right side
    283,623.12x = 63,715,998,239.76
  5. Step 5: Solve for x
    x = 63,715,998,239.76/283,623.12
  6. Step 6: Final answer
    x = 224,650.23

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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.