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Finding the Fourth Proportional to 203,038.56, 305,109.36 and 108,334.62

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Solution

The fourth proportional to 203,038.56, 305,109.36 and 108,334.62 is: 162,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,038.56 : 305,109.36 = 108,334.62 : x
  2. Step 2: Convert to fraction form
    203,038.56/305,109.36 = 108,334.62/x
  3. Step 3: Cross multiply
    203,038.56x = 305,109.36 × 108,334.62
  4. Step 4: Simplify right side
    203,038.56x = 33,053,906,574.04
  5. Step 5: Solve for x
    x = 33,053,906,574.04/203,038.56
  6. Step 6: Final answer
    x = 162,796.20

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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.