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Finding the Fourth Proportional to 396,519, 547,125.66 and 224,436.12

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Solution

The fourth proportional to 396,519, 547,125.66 and 224,436.12 is: 309,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,519 : 547,125.66 = 224,436.12 : x
  2. Step 2: Convert to fraction form
    396,519/547,125.66 = 224,436.12/x
  3. Step 3: Cross multiply
    396,519x = 547,125.66 × 224,436.12
  4. Step 4: Simplify right side
    396,519x = 122,794,760,282.84
  5. Step 5: Solve for x
    x = 122,794,760,282.84/396,519
  6. Step 6: Final answer
    x = 309,681.91

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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.