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Finding the Fourth Proportional to 481,818.11, 664,881.21 and 266,945.36

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Solution

The fourth proportional to 481,818.11, 664,881.21 and 266,945.36 is: 368,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,818.11 : 664,881.21 = 266,945.36 : x
  2. Step 2: Convert to fraction form
    481,818.11/664,881.21 = 266,945.36/x
  3. Step 3: Cross multiply
    481,818.11x = 664,881.21 × 266,945.36
  4. Step 4: Simplify right side
    481,818.11x = 177,486,950,636.28
  5. Step 5: Solve for x
    x = 177,486,950,636.28/481,818.11
  6. Step 6: Final answer
    x = 368,369.20

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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.