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Finding the Fourth Proportional to 443,456.28, 611,970.26 and 252,469.68

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Solution

The fourth proportional to 443,456.28, 611,970.26 and 252,469.68 is: 348,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,456.28 : 611,970.26 = 252,469.68 : x
  2. Step 2: Convert to fraction form
    443,456.28/611,970.26 = 252,469.68/x
  3. Step 3: Cross multiply
    443,456.28x = 611,970.26 × 252,469.68
  4. Step 4: Simplify right side
    443,456.28x = 154,503,934,449.37
  5. Step 5: Solve for x
    x = 154,503,934,449.37/443,456.28
  6. Step 6: Final answer
    x = 348,408.49

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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.