Home / 396,410.64-547,047.03-215,122.57

Finding the Fourth Proportional to 396,410.64, 547,047.03 and 215,122.57

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Solution

The fourth proportional to 396,410.64, 547,047.03 and 215,122.57 is: 296,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,410.64 : 547,047.03 = 215,122.57 : x
  2. Step 2: Convert to fraction form
    396,410.64/547,047.03 = 215,122.57/x
  3. Step 3: Cross multiply
    396,410.64x = 547,047.03 × 215,122.57
  4. Step 4: Simplify right side
    396,410.64x = 117,682,159,193.62
  5. Step 5: Solve for x
    x = 117,682,159,193.62/396,410.64
  6. Step 6: Final answer
    x = 296,869.33

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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.