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Finding the Fourth Proportional to 443,826.60, 665,351.10 and 266,404.20

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Solution

The fourth proportional to 443,826.60, 665,351.10 and 266,404.20 is: 399,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,826.60 : 665,351.10 = 266,404.20 : x
  2. Step 2: Convert to fraction form
    443,826.60/665,351.10 = 266,404.20/x
  3. Step 3: Cross multiply
    443,826.60x = 665,351.10 × 266,404.20
  4. Step 4: Simplify right side
    443,826.60x = 177,252,327,514.62
  5. Step 5: Solve for x
    x = 177,252,327,514.62/443,826.60
  6. Step 6: Final answer
    x = 399,372.93

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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.