Home / 283,500.78-391,147.38-168,687.39

Finding the Fourth Proportional to 283,500.78, 391,147.38 and 168,687.39

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Solution

The fourth proportional to 283,500.78, 391,147.38 and 168,687.39 is: 232,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,500.78 : 391,147.38 = 168,687.39 : x
  2. Step 2: Convert to fraction form
    283,500.78/391,147.38 = 168,687.39/x
  3. Step 3: Cross multiply
    283,500.78x = 391,147.38 × 168,687.39
  4. Step 4: Simplify right side
    283,500.78x = 65,981,630,637.54
  5. Step 5: Solve for x
    x = 65,981,630,637.54/283,500.78
  6. Step 6: Final answer
    x = 232,738.80

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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.