Home / 396,540.26-547,210.68-215,248.30

Finding the Fourth Proportional to 396,540.26, 547,210.68 and 215,248.30

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Solution

The fourth proportional to 396,540.26, 547,210.68 and 215,248.30 is: 297,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540.26 : 547,210.68 = 215,248.30 : x
  2. Step 2: Convert to fraction form
    396,540.26/547,210.68 = 215,248.30/x
  3. Step 3: Cross multiply
    396,540.26x = 547,210.68 × 215,248.30
  4. Step 4: Simplify right side
    396,540.26x = 117,786,168,611.84
  5. Step 5: Solve for x
    x = 117,786,168,611.84/396,540.26
  6. Step 6: Final answer
    x = 297,034.58

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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.