Home / 283,610.86-391,401.96-156,286.48

Finding the Fourth Proportional to 283,610.86, 391,401.96 and 156,286.48

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Solution

The fourth proportional to 283,610.86, 391,401.96 and 156,286.48 is: 215,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,610.86 : 391,401.96 = 156,286.48 : x
  2. Step 2: Convert to fraction form
    283,610.86/391,401.96 = 156,286.48/x
  3. Step 3: Cross multiply
    283,610.86x = 391,401.96 × 156,286.48
  4. Step 4: Simplify right side
    283,610.86x = 61,170,834,593.50
  5. Step 5: Solve for x
    x = 61,170,834,593.50/283,610.86
  6. Step 6: Final answer
    x = 215,685.80

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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.