Finding the Fourth Proportional to 203,806.80, 305,709.96 and 133,669.70
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Solution
The fourth proportional to 203,806.80, 305,709.96 and 133,669.70 is: 200,504.39
Step by Step Solution
- Step 1: Write the proportion equation
203,806.80 : 305,709.96 = 133,669.70 : x - Step 2: Convert to fraction form
203,806.80/305,709.96 = 133,669.70/x - Step 3: Cross multiply
203,806.80x = 305,709.96 × 133,669.70 - Step 4: Simplify right side
203,806.80x = 40,864,158,640.21 - Step 5: Solve for x
x = 40,864,158,640.21/203,806.80 - Step 6: Final answer
x = 200,504.39
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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.