Home / 396,480.84-547,144.08-215,192.76

Finding the Fourth Proportional to 396,480.84, 547,144.08 and 215,192.76

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Solution

The fourth proportional to 396,480.84, 547,144.08 and 215,192.76 is: 296,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,480.84 : 547,144.08 = 215,192.76 : x
  2. Step 2: Convert to fraction form
    396,480.84/547,144.08 = 215,192.76/x
  3. Step 3: Cross multiply
    396,480.84x = 547,144.08 × 215,192.76
  4. Step 4: Simplify right side
    396,480.84x = 117,741,444,692.86
  5. Step 5: Solve for x
    x = 117,741,444,692.86/396,480.84
  6. Step 6: Final answer
    x = 296,966.29

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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.