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Finding the Fourth Proportional to 396,003.69, 546,481.73 and 223,955.44

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Solution

The fourth proportional to 396,003.69, 546,481.73 and 223,955.44 is: 309,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,003.69 : 546,481.73 = 223,955.44 : x
  2. Step 2: Convert to fraction form
    396,003.69/546,481.73 = 223,955.44/x
  3. Step 3: Cross multiply
    396,003.69x = 546,481.73 × 223,955.44
  4. Step 4: Simplify right side
    396,003.69x = 122,387,555,487.80
  5. Step 5: Solve for x
    x = 122,387,555,487.80/396,003.69
  6. Step 6: Final answer
    x = 309,056.60

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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.