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Finding the Fourth Proportional to 396,544.96, 547,241.73 and 215,256.40

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Solution

The fourth proportional to 396,544.96, 547,241.73 and 215,256.40 is: 297,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,544.96 : 547,241.73 = 215,256.40 : x
  2. Step 2: Convert to fraction form
    396,544.96/547,241.73 = 215,256.40/x
  3. Step 3: Cross multiply
    396,544.96x = 547,241.73 × 215,256.40
  4. Step 4: Simplify right side
    396,544.96x = 117,797,284,729.57
  5. Step 5: Solve for x
    x = 117,797,284,729.57/396,544.96
  6. Step 6: Final answer
    x = 297,059.09

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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.