Finding the Fourth Proportional to 311,902.20, 467,197.20 and 259,414.20
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Solution
The fourth proportional to 311,902.20, 467,197.20 and 259,414.20 is: 388,575.61
Step by Step Solution
- Step 1: Write the proportion equation
311,902.20 : 467,197.20 = 259,414.20 : x - Step 2: Convert to fraction form
311,902.20/467,197.20 = 259,414.20/x - Step 3: Cross multiply
311,902.20x = 467,197.20 × 259,414.20 - Step 4: Simplify right side
311,902.20x = 121,197,587,880.24 - Step 5: Solve for x
x = 121,197,587,880.24/311,902.20 - Step 6: Final answer
x = 388,575.61
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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.