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Finding the Fourth Proportional to 424,135.27, 636,410.45 and 199,518.37

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Solution

The fourth proportional to 424,135.27, 636,410.45 and 199,518.37 is: 299,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,135.27 : 636,410.45 = 199,518.37 : x
  2. Step 2: Convert to fraction form
    424,135.27/636,410.45 = 199,518.37/x
  3. Step 3: Cross multiply
    424,135.27x = 636,410.45 × 199,518.37
  4. Step 4: Simplify right side
    424,135.27x = 126,975,575,634.97
  5. Step 5: Solve for x
    x = 126,975,575,634.97/424,135.27
  6. Step 6: Final answer
    x = 299,375.19

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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.