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Finding the Fourth Proportional to 424,394.52, 636,872.22 and 199,819.17

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Solution

The fourth proportional to 424,394.52, 636,872.22 and 199,819.17 is: 299,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,394.52 : 636,872.22 = 199,819.17 : x
  2. Step 2: Convert to fraction form
    424,394.52/636,872.22 = 199,819.17/x
  3. Step 3: Cross multiply
    424,394.52x = 636,872.22 × 199,819.17
  4. Step 4: Simplify right side
    424,394.52x = 127,259,278,396.46
  5. Step 5: Solve for x
    x = 127,259,278,396.46/424,394.52
  6. Step 6: Final answer
    x = 299,860.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.