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Finding the Fourth Proportional to 203,453.20, 305,093.40 and 98,304.40

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Solution

The fourth proportional to 203,453.20, 305,093.40 and 98,304.40 is: 147,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,453.20 : 305,093.40 = 98,304.40 : x
  2. Step 2: Convert to fraction form
    203,453.20/305,093.40 = 98,304.40/x
  3. Step 3: Cross multiply
    203,453.20x = 305,093.40 × 98,304.40
  4. Step 4: Simplify right side
    203,453.20x = 29,992,023,630.96
  5. Step 5: Solve for x
    x = 29,992,023,630.96/203,453.20
  6. Step 6: Final answer
    x = 147,414.85

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1.5x scale

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.