Home / 396,500.05-547,170.61-215,212.01

Finding the Fourth Proportional to 396,500.05, 547,170.61 and 215,212.01

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Solution

The fourth proportional to 396,500.05, 547,170.61 and 215,212.01 is: 296,992.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,500.05 : 547,170.61 = 215,212.01 : x
  2. Step 2: Convert to fraction form
    396,500.05/547,170.61 = 215,212.01/x
  3. Step 3: Cross multiply
    396,500.05x = 547,170.61 × 215,212.01
  4. Step 4: Simplify right side
    396,500.05x = 117,757,688,966.00
  5. Step 5: Solve for x
    x = 117,757,688,966.00/396,500.05
  6. Step 6: Final answer
    x = 296,992.87

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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.