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Finding the Fourth Proportional to 203,467.30, 305,200.95 and 133,387.30

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Solution

The fourth proportional to 203,467.30, 305,200.95 and 133,387.30 is: 200,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,467.30 : 305,200.95 = 133,387.30 : x
  2. Step 2: Convert to fraction form
    203,467.30/305,200.95 = 133,387.30/x
  3. Step 3: Cross multiply
    203,467.30x = 305,200.95 × 133,387.30
  4. Step 4: Simplify right side
    203,467.30x = 40,709,930,677.94
  5. Step 5: Solve for x
    x = 40,709,930,677.94/203,467.30
  6. Step 6: Final answer
    x = 200,080.95

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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.