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Finding the Fourth Proportional to 481,651.72, 664,701.26 and 266,791.76

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Solution

The fourth proportional to 481,651.72, 664,701.26 and 266,791.76 is: 368,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,651.72 : 664,701.26 = 266,791.76 : x
  2. Step 2: Convert to fraction form
    481,651.72/664,701.26 = 266,791.76/x
  3. Step 3: Cross multiply
    481,651.72x = 664,701.26 × 266,791.76
  4. Step 4: Simplify right side
    481,651.72x = 177,336,817,695.66
  5. Step 5: Solve for x
    x = 177,336,817,695.66/481,651.72
  6. Step 6: Final answer
    x = 368,184.75

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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.