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Finding the Fourth Proportional to 481,643.72, 664,668.38 and 266,797.70

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Solution

The fourth proportional to 481,643.72, 664,668.38 and 266,797.70 is: 368,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,643.72 : 664,668.38 = 266,797.70 : x
  2. Step 2: Convert to fraction form
    481,643.72/664,668.38 = 266,797.70/x
  3. Step 3: Cross multiply
    481,643.72x = 664,668.38 × 266,797.70
  4. Step 4: Simplify right side
    481,643.72x = 177,331,994,882.89
  5. Step 5: Solve for x
    x = 177,331,994,882.89/481,643.72
  6. Step 6: Final answer
    x = 368,180.85

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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.