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Finding the Fourth Proportional to 200,450.20, 300,092.10 and 121,523.80

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Solution

The fourth proportional to 200,450.20, 300,092.10 and 121,523.80 is: 181,932.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,450.20 : 300,092.10 = 121,523.80 : x
  2. Step 2: Convert to fraction form
    200,450.20/300,092.10 = 121,523.80/x
  3. Step 3: Cross multiply
    200,450.20x = 300,092.10 × 121,523.80
  4. Step 4: Simplify right side
    200,450.20x = 36,468,332,341.98
  5. Step 5: Solve for x
    x = 36,468,332,341.98/200,450.20
  6. Step 6: Final answer
    x = 181,932.13

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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.