Home / 396,503.30-547,175.12-215,215.29

Finding the Fourth Proportional to 396,503.30, 547,175.12 and 215,215.29

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Solution

The fourth proportional to 396,503.30, 547,175.12 and 215,215.29 is: 296,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,503.30 : 547,175.12 = 215,215.29 : x
  2. Step 2: Convert to fraction form
    396,503.30/547,175.12 = 215,215.29/x
  3. Step 3: Cross multiply
    396,503.30x = 547,175.12 × 215,215.29
  4. Step 4: Simplify right side
    396,503.30x = 117,760,451,055.51
  5. Step 5: Solve for x
    x = 117,760,451,055.51/396,503.30
  6. Step 6: Final answer
    x = 296,997.40

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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.