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Finding the Fourth Proportional to 481,725.76, 664,727.88 and 266,812

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Solution

The fourth proportional to 481,725.76, 664,727.88 and 266,812 is: 368,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,725.76 : 664,727.88 = 266,812 : x
  2. Step 2: Convert to fraction form
    481,725.76/664,727.88 = 266,812/x
  3. Step 3: Cross multiply
    481,725.76x = 664,727.88 × 266,812
  4. Step 4: Simplify right side
    481,725.76x = 177,357,375,118.56
  5. Step 5: Solve for x
    x = 177,357,375,118.56/481,725.76
  6. Step 6: Final answer
    x = 368,170.83

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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.