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Finding the Fourth Proportional to 203,669.15, 305,530.55 and 75,568

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Solution

The fourth proportional to 203,669.15, 305,530.55 and 75,568 is: 113,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,669.15 : 305,530.55 = 75,568 : x
  2. Step 2: Convert to fraction form
    203,669.15/305,530.55 = 75,568/x
  3. Step 3: Cross multiply
    203,669.15x = 305,530.55 × 75,568
  4. Step 4: Simplify right side
    203,669.15x = 23,088,332,602.40
  5. Step 5: Solve for x
    x = 23,088,332,602.40/203,669.15
  6. Step 6: Final answer
    x = 113,361.95

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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.