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Finding the Fourth Proportional to 325,607.65, 449,339.91 and 189,734.81

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Solution

The fourth proportional to 325,607.65, 449,339.91 and 189,734.81 is: 261,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,607.65 : 449,339.91 = 189,734.81 : x
  2. Step 2: Convert to fraction form
    325,607.65/449,339.91 = 189,734.81/x
  3. Step 3: Cross multiply
    325,607.65x = 449,339.91 × 189,734.81
  4. Step 4: Simplify right side
    325,607.65x = 85,255,419,491.06
  5. Step 5: Solve for x
    x = 85,255,419,491.06/325,607.65
  6. Step 6: Final answer
    x = 261,834.82

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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.