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Finding the Fourth Proportional to 481,380.94, 664,350.26 and 266,521

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Solution

The fourth proportional to 481,380.94, 664,350.26 and 266,521 is: 367,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,380.94 : 664,350.26 = 266,521 : x
  2. Step 2: Convert to fraction form
    481,380.94/664,350.26 = 266,521/x
  3. Step 3: Cross multiply
    481,380.94x = 664,350.26 × 266,521
  4. Step 4: Simplify right side
    481,380.94x = 177,063,295,645.46
  5. Step 5: Solve for x
    x = 177,063,295,645.46/481,380.94
  6. Step 6: Final answer
    x = 367,823.65

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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.