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Finding the Fourth Proportional to 481,769.70, 664,846.90 and 266,912.72

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Solution

The fourth proportional to 481,769.70, 664,846.90 and 266,912.72 is: 368,342.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,769.70 : 664,846.90 = 266,912.72 : x
  2. Step 2: Convert to fraction form
    481,769.70/664,846.90 = 266,912.72/x
  3. Step 3: Cross multiply
    481,769.70x = 664,846.90 × 266,912.72
  4. Step 4: Simplify right side
    481,769.70x = 177,456,094,462.57
  5. Step 5: Solve for x
    x = 177,456,094,462.57/481,769.70
  6. Step 6: Final answer
    x = 368,342.17

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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.