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Finding the Fourth Proportional to 266,996.46, 400,560.31 and 80,007.96

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Solution

The fourth proportional to 266,996.46, 400,560.31 and 80,007.96 is: 120,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,996.46 : 400,560.31 = 80,007.96 : x
  2. Step 2: Convert to fraction form
    266,996.46/400,560.31 = 80,007.96/x
  3. Step 3: Cross multiply
    266,996.46x = 400,560.31 × 80,007.96
  4. Step 4: Simplify right side
    266,996.46x = 32,048,013,960.63
  5. Step 5: Solve for x
    x = 32,048,013,960.63/266,996.46
  6. Step 6: Final answer
    x = 120,031.61

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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.