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Finding the Fourth Proportional to 203,549.12, 305,375.36 and 63,308.80

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Solution

The fourth proportional to 203,549.12, 305,375.36 and 63,308.80 is: 94,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,549.12 : 305,375.36 = 63,308.80 : x
  2. Step 2: Convert to fraction form
    203,549.12/305,375.36 = 63,308.80/x
  3. Step 3: Cross multiply
    203,549.12x = 305,375.36 × 63,308.80
  4. Step 4: Simplify right side
    203,549.12x = 19,332,947,591.17
  5. Step 5: Solve for x
    x = 19,332,947,591.17/203,549.12
  6. Step 6: Final answer
    x = 94,979.27

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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.