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Finding the Fourth Proportional to 396,958.42, 547,800.33 and 215,669.14

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Solution

The fourth proportional to 396,958.42, 547,800.33 and 215,669.14 is: 297,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,958.42 : 547,800.33 = 215,669.14 : x
  2. Step 2: Convert to fraction form
    396,958.42/547,800.33 = 215,669.14/x
  3. Step 3: Cross multiply
    396,958.42x = 547,800.33 × 215,669.14
  4. Step 4: Simplify right side
    396,958.42x = 118,143,626,062.82
  5. Step 5: Solve for x
    x = 118,143,626,062.82/396,958.42
  6. Step 6: Final answer
    x = 297,622.17

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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.