Home / 396,501.30-547,172.34-215,213.27

Finding the Fourth Proportional to 396,501.30, 547,172.34 and 215,213.27

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Solution

The fourth proportional to 396,501.30, 547,172.34 and 215,213.27 is: 296,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,501.30 : 547,172.34 = 215,213.27 : x
  2. Step 2: Convert to fraction form
    396,501.30/547,172.34 = 215,213.27/x
  3. Step 3: Cross multiply
    396,501.30x = 547,172.34 × 215,213.27
  4. Step 4: Simplify right side
    396,501.30x = 117,758,745,809.09
  5. Step 5: Solve for x
    x = 117,758,745,809.09/396,501.30
  6. Step 6: Final answer
    x = 296,994.60

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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.