Home / 396,511.05-547,170.60-215,219.16

Finding the Fourth Proportional to 396,511.05, 547,170.60 and 215,219.16

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Solution

The fourth proportional to 396,511.05, 547,170.60 and 215,219.16 is: 296,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,511.05 : 547,170.60 = 215,219.16 : x
  2. Step 2: Convert to fraction form
    396,511.05/547,170.60 = 215,219.16/x
  3. Step 3: Cross multiply
    396,511.05x = 547,170.60 × 215,219.16
  4. Step 4: Simplify right side
    396,511.05x = 117,761,596,908.70
  5. Step 5: Solve for x
    x = 117,761,596,908.70/396,511.05
  6. Step 6: Final answer
    x = 296,994.49

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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.