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Finding the Fourth Proportional to 203,465.70, 305,198.55 and 170,223.30

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Solution

The fourth proportional to 203,465.70, 305,198.55 and 170,223.30 is: 255,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,465.70 : 305,198.55 = 170,223.30 : x
  2. Step 2: Convert to fraction form
    203,465.70/305,198.55 = 170,223.30/x
  3. Step 3: Cross multiply
    203,465.70x = 305,198.55 × 170,223.30
  4. Step 4: Simplify right side
    203,465.70x = 51,951,904,336.22
  5. Step 5: Solve for x
    x = 51,951,904,336.22/203,465.70
  6. Step 6: Final answer
    x = 255,334.95

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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.