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Finding the Fourth Proportional to 396,504.84, 547,176.84 and 215,216.76

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Solution

The fourth proportional to 396,504.84, 547,176.84 and 215,216.76 is: 296,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,504.84 : 547,176.84 = 215,216.76 : x
  2. Step 2: Convert to fraction form
    396,504.84/547,176.84 = 215,216.76/x
  3. Step 3: Cross multiply
    396,504.84x = 547,176.84 × 215,216.76
  4. Step 4: Simplify right side
    396,504.84x = 117,761,626,651.84
  5. Step 5: Solve for x
    x = 117,761,626,651.84/396,504.84
  6. Step 6: Final answer
    x = 296,999.22

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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.