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Finding the Fourth Proportional to 349,571.28, 482,449.32 and 198,690.96

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Solution

The fourth proportional to 349,571.28, 482,449.32 and 198,690.96 is: 274,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,571.28 : 482,449.32 = 198,690.96 : x
  2. Step 2: Convert to fraction form
    349,571.28/482,449.32 = 198,690.96/x
  3. Step 3: Cross multiply
    349,571.28x = 482,449.32 × 198,690.96
  4. Step 4: Simplify right side
    349,571.28x = 95,858,318,542.15
  5. Step 5: Solve for x
    x = 95,858,318,542.15/349,571.28
  6. Step 6: Final answer
    x = 274,216.80

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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.