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Finding the Fourth Proportional to 396,179.35, 546,723.45 and 214,887.38

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Solution

The fourth proportional to 396,179.35, 546,723.45 and 214,887.38 is: 296,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,179.35 : 546,723.45 = 214,887.38 : x
  2. Step 2: Convert to fraction form
    396,179.35/546,723.45 = 214,887.38/x
  3. Step 3: Cross multiply
    396,179.35x = 546,723.45 × 214,887.38
  4. Step 4: Simplify right side
    396,179.35x = 117,483,967,021.44
  5. Step 5: Solve for x
    x = 117,483,967,021.44/396,179.35
  6. Step 6: Final answer
    x = 296,542.38

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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.