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Finding the Fourth Proportional to 481,680.75, 664,711.11 and 266,816.31

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Solution

The fourth proportional to 481,680.75, 664,711.11 and 266,816.31 is: 368,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,680.75 : 664,711.11 = 266,816.31 : x
  2. Step 2: Convert to fraction form
    481,680.75/664,711.11 = 266,816.31/x
  3. Step 3: Cross multiply
    481,680.75x = 664,711.11 × 266,816.31
  4. Step 4: Simplify right side
    481,680.75x = 177,355,765,586.20
  5. Step 5: Solve for x
    x = 177,355,765,586.20/481,680.75
  6. Step 6: Final answer
    x = 368,201.90

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1.5x scale

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.