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Finding the Fourth Proportional to 325,607.25, 449,339.39 and 189,734.42

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Solution

The fourth proportional to 325,607.25, 449,339.39 and 189,734.42 is: 261,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,607.25 : 449,339.39 = 189,734.42 : x
  2. Step 2: Convert to fraction form
    325,607.25/449,339.39 = 189,734.42/x
  3. Step 3: Cross multiply
    325,607.25x = 449,339.39 × 189,734.42
  4. Step 4: Simplify right side
    325,607.25x = 85,255,145,349.43
  5. Step 5: Solve for x
    x = 85,255,145,349.43/325,607.25
  6. Step 6: Final answer
    x = 261,834.30

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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.