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Finding the Fourth Proportional to 322,184.48, 483,297.78 and 85,520.84

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Solution

The fourth proportional to 322,184.48, 483,297.78 and 85,520.84 is: 128,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,184.48 : 483,297.78 = 85,520.84 : x
  2. Step 2: Convert to fraction form
    322,184.48/483,297.78 = 85,520.84/x
  3. Step 3: Cross multiply
    322,184.48x = 483,297.78 × 85,520.84
  4. Step 4: Simplify right side
    322,184.48x = 41,332,032,115.74
  5. Step 5: Solve for x
    x = 41,332,032,115.74/322,184.48
  6. Step 6: Final answer
    x = 128,286.85

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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.