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Finding the Fourth Proportional to 455,959.88, 629,257.21 and 252,006.42

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Solution

The fourth proportional to 455,959.88, 629,257.21 and 252,006.42 is: 347,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,959.88 : 629,257.21 = 252,006.42 : x
  2. Step 2: Convert to fraction form
    455,959.88/629,257.21 = 252,006.42/x
  3. Step 3: Cross multiply
    455,959.88x = 629,257.21 × 252,006.42
  4. Step 4: Simplify right side
    455,959.88x = 158,576,853,605.00
  5. Step 5: Solve for x
    x = 158,576,853,605.00/455,959.88
  6. Step 6: Final answer
    x = 347,786.86

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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.