Home / 396,740.20-547,503.78-226,981.48

Finding the Fourth Proportional to 396,740.20, 547,503.78 and 226,981.48

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Solution

The fourth proportional to 396,740.20, 547,503.78 and 226,981.48 is: 313,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,740.20 : 547,503.78 = 226,981.48 : x
  2. Step 2: Convert to fraction form
    396,740.20/547,503.78 = 226,981.48/x
  3. Step 3: Cross multiply
    396,740.20x = 547,503.78 × 226,981.48
  4. Step 4: Simplify right side
    396,740.20x = 124,273,218,289.99
  5. Step 5: Solve for x
    x = 124,273,218,289.99/396,740.20
  6. Step 6: Final answer
    x = 313,235.76

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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.