Home / 396,747.72-547,501.14-215,451.36

Finding the Fourth Proportional to 396,747.72, 547,501.14 and 215,451.36

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Solution

The fourth proportional to 396,747.72, 547,501.14 and 215,451.36 is: 297,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,747.72 : 547,501.14 = 215,451.36 : x
  2. Step 2: Convert to fraction form
    396,747.72/547,501.14 = 215,451.36/x
  3. Step 3: Cross multiply
    396,747.72x = 547,501.14 × 215,451.36
  4. Step 4: Simplify right side
    396,747.72x = 117,959,865,214.55
  5. Step 5: Solve for x
    x = 117,959,865,214.55/396,747.72
  6. Step 6: Final answer
    x = 297,317.06

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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.