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Finding the Fourth Proportional to 481,501.38, 664,463.07 and 266,640.78

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Solution

The fourth proportional to 481,501.38, 664,463.07 and 266,640.78 is: 367,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,501.38 : 664,463.07 = 266,640.78 : x
  2. Step 2: Convert to fraction form
    481,501.38/664,463.07 = 266,640.78/x
  3. Step 3: Cross multiply
    481,501.38x = 664,463.07 × 266,640.78
  4. Step 4: Simplify right side
    481,501.38x = 177,172,951,266.00
  5. Step 5: Solve for x
    x = 177,172,951,266.00/481,501.38
  6. Step 6: Final answer
    x = 367,959.38

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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.