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Finding the Fourth Proportional to 454,801.20, 682,234.20 and 139,257.60

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Solution

The fourth proportional to 454,801.20, 682,234.20 and 139,257.60 is: 208,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,801.20 : 682,234.20 = 139,257.60 : x
  2. Step 2: Convert to fraction form
    454,801.20/682,234.20 = 139,257.60/x
  3. Step 3: Cross multiply
    454,801.20x = 682,234.20 × 139,257.60
  4. Step 4: Simplify right side
    454,801.20x = 95,006,297,329.92
  5. Step 5: Solve for x
    x = 95,006,297,329.92/454,801.20
  6. Step 6: Final answer
    x = 208,896.32

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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.