Home / 396,511.02-547,176.52-215,223.30

Finding the Fourth Proportional to 396,511.02, 547,176.52 and 215,223.30

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Solution

The fourth proportional to 396,511.02, 547,176.52 and 215,223.30 is: 297,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,511.02 : 547,176.52 = 215,223.30 : x
  2. Step 2: Convert to fraction form
    396,511.02/547,176.52 = 215,223.30/x
  3. Step 3: Cross multiply
    396,511.02x = 547,176.52 × 215,223.30
  4. Step 4: Simplify right side
    396,511.02x = 117,765,136,316.92
  5. Step 5: Solve for x
    x = 117,765,136,316.92/396,511.02
  6. Step 6: Final answer
    x = 297,003.44

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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.