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Finding the Fourth Proportional to 481,379.94, 664,348.88 and 266,520

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Solution

The fourth proportional to 481,379.94, 664,348.88 and 266,520 is: 367,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,379.94 : 664,348.88 = 266,520 : x
  2. Step 2: Convert to fraction form
    481,379.94/664,348.88 = 266,520/x
  3. Step 3: Cross multiply
    481,379.94x = 664,348.88 × 266,520
  4. Step 4: Simplify right side
    481,379.94x = 177,062,263,497.60
  5. Step 5: Solve for x
    x = 177,062,263,497.60/481,379.94
  6. Step 6: Final answer
    x = 367,822.27

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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.