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Finding the Fourth Proportional to 203,663.80, 305,397.03 and 119,451.54

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Solution

The fourth proportional to 203,663.80, 305,397.03 and 119,451.54 is: 179,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,663.80 : 305,397.03 = 119,451.54 : x
  2. Step 2: Convert to fraction form
    203,663.80/305,397.03 = 119,451.54/x
  3. Step 3: Cross multiply
    203,663.80x = 305,397.03 × 119,451.54
  4. Step 4: Simplify right side
    203,663.80x = 36,480,145,544.93
  5. Step 5: Solve for x
    x = 36,480,145,544.93/203,663.80
  6. Step 6: Final answer
    x = 179,119.44

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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.