Home / 396,763.38-547,533.32-215,475.35

Finding the Fourth Proportional to 396,763.38, 547,533.32 and 215,475.35

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Solution

The fourth proportional to 396,763.38, 547,533.32 and 215,475.35 is: 297,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,763.38 : 547,533.32 = 215,475.35 : x
  2. Step 2: Convert to fraction form
    396,763.38/547,533.32 = 215,475.35/x
  3. Step 3: Cross multiply
    396,763.38x = 547,533.32 × 215,475.35
  4. Step 4: Simplify right side
    396,763.38x = 117,979,929,948.62
  5. Step 5: Solve for x
    x = 117,979,929,948.62/396,763.38
  6. Step 6: Final answer
    x = 297,355.89

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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.