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Finding the Fourth Proportional to 203,683.91, 305,525.86 and 108,626.10

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Solution

The fourth proportional to 203,683.91, 305,525.86 and 108,626.10 is: 162,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,683.91 : 305,525.86 = 108,626.10 : x
  2. Step 2: Convert to fraction form
    203,683.91/305,525.86 = 108,626.10/x
  3. Step 3: Cross multiply
    203,683.91x = 305,525.86 × 108,626.10
  4. Step 4: Simplify right side
    203,683.91x = 33,188,081,203.66
  5. Step 5: Solve for x
    x = 33,188,081,203.66/203,683.91
  6. Step 6: Final answer
    x = 162,939.14

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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.