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Finding the Fourth Proportional to 227,249.78, 313,615.41 and 126,648.50

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Solution

The fourth proportional to 227,249.78, 313,615.41 and 126,648.50 is: 174,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,249.78 : 313,615.41 = 126,648.50 : x
  2. Step 2: Convert to fraction form
    227,249.78/313,615.41 = 126,648.50/x
  3. Step 3: Cross multiply
    227,249.78x = 313,615.41 × 126,648.50
  4. Step 4: Simplify right side
    227,249.78x = 39,718,921,253.39
  5. Step 5: Solve for x
    x = 39,718,921,253.39/227,249.78
  6. Step 6: Final answer
    x = 174,780.90

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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.