Home / 396,427.26-547,073.63-215,140.76

Finding the Fourth Proportional to 396,427.26, 547,073.63 and 215,140.76

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Solution

The fourth proportional to 396,427.26, 547,073.63 and 215,140.76 is: 296,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,427.26 : 547,073.63 = 215,140.76 : x
  2. Step 2: Convert to fraction form
    396,427.26/547,073.63 = 215,140.76/x
  3. Step 3: Cross multiply
    396,427.26x = 547,073.63 × 215,140.76
  4. Step 4: Simplify right side
    396,427.26x = 117,697,832,723.09
  5. Step 5: Solve for x
    x = 117,697,832,723.09/396,427.26
  6. Step 6: Final answer
    x = 296,896.42

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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.