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Finding the Fourth Proportional to 481,733.20, 664,832.64 and 266,940.64

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Solution

The fourth proportional to 481,733.20, 664,832.64 and 266,940.64 is: 368,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,733.20 : 664,832.64 = 266,940.64 : x
  2. Step 2: Convert to fraction form
    481,733.20/664,832.64 = 266,940.64/x
  3. Step 3: Cross multiply
    481,733.20x = 664,832.64 × 266,940.64
  4. Step 4: Simplify right side
    481,733.20x = 177,470,850,414.49
  5. Step 5: Solve for x
    x = 177,470,850,414.49/481,733.20
  6. Step 6: Final answer
    x = 368,400.70

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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.