Home / 396,500.16-547,170.77-215,212.13

Finding the Fourth Proportional to 396,500.16, 547,170.77 and 215,212.13

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Solution

The fourth proportional to 396,500.16, 547,170.77 and 215,212.13 is: 296,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,500.16 : 547,170.77 = 215,212.13 : x
  2. Step 2: Convert to fraction form
    396,500.16/547,170.77 = 215,212.13/x
  3. Step 3: Cross multiply
    396,500.16x = 547,170.77 × 215,212.13
  4. Step 4: Simplify right side
    396,500.16x = 117,757,786,117.09
  5. Step 5: Solve for x
    x = 117,757,786,117.09/396,500.16
  6. Step 6: Final answer
    x = 296,993.04

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1.5x scale

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.