Home / 396,423.10-547,067.88-215,136.59

Finding the Fourth Proportional to 396,423.10, 547,067.88 and 215,136.59

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Solution

The fourth proportional to 396,423.10, 547,067.88 and 215,136.59 is: 296,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,423.10 : 547,067.88 = 215,136.59 : x
  2. Step 2: Convert to fraction form
    396,423.10/547,067.88 = 215,136.59/x
  3. Step 3: Cross multiply
    396,423.10x = 547,067.88 × 215,136.59
  4. Step 4: Simplify right side
    396,423.10x = 117,694,319,569.40
  5. Step 5: Solve for x
    x = 117,694,319,569.40/396,423.10
  6. Step 6: Final answer
    x = 296,890.67

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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.