Home / 396,506.06-547,178.91-215,218.03

Finding the Fourth Proportional to 396,506.06, 547,178.91 and 215,218.03

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Solution

The fourth proportional to 396,506.06, 547,178.91 and 215,218.03 is: 297,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,506.06 : 547,178.91 = 215,218.03 : x
  2. Step 2: Convert to fraction form
    396,506.06/547,178.91 = 215,218.03/x
  3. Step 3: Cross multiply
    396,506.06x = 547,178.91 × 215,218.03
  4. Step 4: Simplify right side
    396,506.06x = 117,762,763,255.76
  5. Step 5: Solve for x
    x = 117,762,763,255.76/396,506.06
  6. Step 6: Final answer
    x = 297,001.17

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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.