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Finding the Fourth Proportional to 424,437.85, 636,836.83 and 199,793.33

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Solution

The fourth proportional to 424,437.85, 636,836.83 and 199,793.33 is: 299,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,437.85 : 636,836.83 = 199,793.33 : x
  2. Step 2: Convert to fraction form
    424,437.85/636,836.83 = 199,793.33/x
  3. Step 3: Cross multiply
    424,437.85x = 636,836.83 × 199,793.33
  4. Step 4: Simplify right side
    424,437.85x = 127,235,747,248.68
  5. Step 5: Solve for x
    x = 127,235,747,248.68/424,437.85
  6. Step 6: Final answer
    x = 299,774.74

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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.