Finding the Fourth Proportional to 207,375.20, 311,062.80 and 203,919.20
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Solution
The fourth proportional to 207,375.20, 311,062.80 and 203,919.20 is: 305,878.80
Step by Step Solution
- Step 1: Write the proportion equation
207,375.20 : 311,062.80 = 203,919.20 : x - Step 2: Convert to fraction form
207,375.20/311,062.80 = 203,919.20/x - Step 3: Cross multiply
207,375.20x = 311,062.80 × 203,919.20 - Step 4: Simplify right side
207,375.20x = 63,431,677,325.76 - Step 5: Solve for x
x = 63,431,677,325.76/207,375.20 - Step 6: Final answer
x = 305,878.80
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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.