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Finding the Fourth Proportional to 322,403.70, 483,605.55 and 100,787.70

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Solution

The fourth proportional to 322,403.70, 483,605.55 and 100,787.70 is: 151,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.70 : 483,605.55 = 100,787.70 : x
  2. Step 2: Convert to fraction form
    322,403.70/483,605.55 = 100,787.70/x
  3. Step 3: Cross multiply
    322,403.70x = 483,605.55 × 100,787.70
  4. Step 4: Simplify right side
    322,403.70x = 48,741,491,091.74
  5. Step 5: Solve for x
    x = 48,741,491,091.74/322,403.70
  6. Step 6: Final answer
    x = 151,181.55

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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.