Home / 396,836.69-547,638.75-215,552.15

Finding the Fourth Proportional to 396,836.69, 547,638.75 and 215,552.15

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Solution

The fourth proportional to 396,836.69, 547,638.75 and 215,552.15 is: 297,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,836.69 : 547,638.75 = 215,552.15 : x
  2. Step 2: Convert to fraction form
    396,836.69/547,638.75 = 215,552.15/x
  3. Step 3: Cross multiply
    396,836.69x = 547,638.75 × 215,552.15
  4. Step 4: Simplify right side
    396,836.69x = 118,044,707,247.62
  5. Step 5: Solve for x
    x = 118,044,707,247.62/396,836.69
  6. Step 6: Final answer
    x = 297,464.20

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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.