Home / 396,910.22-547,739.90-215,623.52

Finding the Fourth Proportional to 396,910.22, 547,739.90 and 215,623.52

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Solution

The fourth proportional to 396,910.22, 547,739.90 and 215,623.52 is: 297,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,910.22 : 547,739.90 = 215,623.52 : x
  2. Step 2: Convert to fraction form
    396,910.22/547,739.90 = 215,623.52/x
  3. Step 3: Cross multiply
    396,910.22x = 547,739.90 × 215,623.52
  4. Step 4: Simplify right side
    396,910.22x = 118,105,601,465.63
  5. Step 5: Solve for x
    x = 118,105,601,465.63/396,910.22
  6. Step 6: Final answer
    x = 297,562.51

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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.