Home / 396,944.64-547,789.80-215,660.16

Finding the Fourth Proportional to 396,944.64, 547,789.80 and 215,660.16

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Solution

The fourth proportional to 396,944.64, 547,789.80 and 215,660.16 is: 297,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,944.64 : 547,789.80 = 215,660.16 : x
  2. Step 2: Convert to fraction form
    396,944.64/547,789.80 = 215,660.16/x
  3. Step 3: Cross multiply
    396,944.64x = 547,789.80 × 215,660.16
  4. Step 4: Simplify right side
    396,944.64x = 118,136,435,914.37
  5. Step 5: Solve for x
    x = 118,136,435,914.37/396,944.64
  6. Step 6: Final answer
    x = 297,614.39

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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.