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Finding the Fourth Proportional to 490,787.44, 736,197.55 and 135,771.73

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Solution

The fourth proportional to 490,787.44, 736,197.55 and 135,771.73 is: 203,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,787.44 : 736,197.55 = 135,771.73 : x
  2. Step 2: Convert to fraction form
    490,787.44/736,197.55 = 135,771.73/x
  3. Step 3: Cross multiply
    490,787.44x = 736,197.55 × 135,771.73
  4. Step 4: Simplify right side
    490,787.44x = 99,954,813,484.20
  5. Step 5: Solve for x
    x = 99,954,813,484.20/490,787.44
  6. Step 6: Final answer
    x = 203,662.13

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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.