Finding the Fourth Proportional to 203,793.21, 305,591.49 and 85,432.77
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Solution
The fourth proportional to 203,793.21, 305,591.49 and 85,432.77 is: 128,107.94
Step by Step Solution
- Step 1: Write the proportion equation
203,793.21 : 305,591.49 = 85,432.77 : x - Step 2: Convert to fraction form
203,793.21/305,591.49 = 85,432.77/x - Step 3: Cross multiply
203,793.21x = 305,591.49 × 85,432.77 - Step 4: Simplify right side
203,793.21x = 26,107,527,479.13 - Step 5: Solve for x
x = 26,107,527,479.13/203,793.21 - Step 6: Final answer
x = 128,107.94
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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.