Home / 424,133.77-636,408.20-199,516.87

Finding the Fourth Proportional to 424,133.77, 636,408.20 and 199,516.87

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Solution

The fourth proportional to 424,133.77, 636,408.20 and 199,516.87 is: 299,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,133.77 : 636,408.20 = 199,516.87 : x
  2. Step 2: Convert to fraction form
    424,133.77/636,408.20 = 199,516.87/x
  3. Step 3: Cross multiply
    424,133.77x = 636,408.20 × 199,516.87
  4. Step 4: Simplify right side
    424,133.77x = 126,974,172,106.33
  5. Step 5: Solve for x
    x = 126,974,172,106.33/424,133.77
  6. Step 6: Final answer
    x = 299,372.94

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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.