Home / 396,423.22-547,068.05-215,136.71

Finding the Fourth Proportional to 396,423.22, 547,068.05 and 215,136.71

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Solution

The fourth proportional to 396,423.22, 547,068.05 and 215,136.71 is: 296,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,423.22 : 547,068.05 = 215,136.71 : x
  2. Step 2: Convert to fraction form
    396,423.22/547,068.05 = 215,136.71/x
  3. Step 3: Cross multiply
    396,423.22x = 547,068.05 × 215,136.71
  4. Step 4: Simplify right side
    396,423.22x = 117,694,419,347.43
  5. Step 5: Solve for x
    x = 117,694,419,347.43/396,423.22
  6. Step 6: Final answer
    x = 296,890.84

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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.