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Finding the Fourth Proportional to 443,221.91, 663,877.94 and 300,282.96

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Solution

The fourth proportional to 443,221.91, 663,877.94 and 300,282.96 is: 449,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,221.91 : 663,877.94 = 300,282.96 : x
  2. Step 2: Convert to fraction form
    443,221.91/663,877.94 = 300,282.96/x
  3. Step 3: Cross multiply
    443,221.91x = 663,877.94 × 300,282.96
  4. Step 4: Simplify right side
    443,221.91x = 199,351,231,400.49
  5. Step 5: Solve for x
    x = 199,351,231,400.49/443,221.91
  6. Step 6: Final answer
    x = 449,777.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.