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Finding the Fourth Proportional to 422,299.68, 582,552.72 and 261,103.20

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Solution

The fourth proportional to 422,299.68, 582,552.72 and 261,103.20 is: 360,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,299.68 : 582,552.72 = 261,103.20 : x
  2. Step 2: Convert to fraction form
    422,299.68/582,552.72 = 261,103.20/x
  3. Step 3: Cross multiply
    422,299.68x = 582,552.72 × 261,103.20
  4. Step 4: Simplify right side
    422,299.68x = 152,106,379,360.70
  5. Step 5: Solve for x
    x = 152,106,379,360.70/422,299.68
  6. Step 6: Final answer
    x = 360,185.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.