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Finding the Fourth Proportional to 424,142.97, 636,214.58 and 199,338.33

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Solution

The fourth proportional to 424,142.97, 636,214.58 and 199,338.33 is: 299,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,142.97 : 636,214.58 = 199,338.33 : x
  2. Step 2: Convert to fraction form
    424,142.97/636,214.58 = 199,338.33/x
  3. Step 3: Cross multiply
    424,142.97x = 636,214.58 × 199,338.33
  4. Step 4: Simplify right side
    424,142.97x = 126,821,950,902.16
  5. Step 5: Solve for x
    x = 126,821,950,902.16/424,142.97
  6. Step 6: Final answer
    x = 299,007.55

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1.5x scale

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.