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Finding the Fourth Proportional to 443,841.06, 665,929.20 and 266,471.70

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Solution

The fourth proportional to 443,841.06, 665,929.20 and 266,471.70 is: 399,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,841.06 : 665,929.20 = 266,471.70 : x
  2. Step 2: Convert to fraction form
    443,841.06/665,929.20 = 266,471.70/x
  3. Step 3: Cross multiply
    443,841.06x = 665,929.20 × 266,471.70
  4. Step 4: Simplify right side
    443,841.06x = 177,451,286,003.64
  5. Step 5: Solve for x
    x = 177,451,286,003.64/443,841.06
  6. Step 6: Final answer
    x = 399,808.18

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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.