Finding the Fourth Proportional to 207,331.20, 311,324.86 and 157,467.60
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Solution
The fourth proportional to 207,331.20, 311,324.86 and 157,467.60 is: 236,450.56
Step by Step Solution
- Step 1: Write the proportion equation
207,331.20 : 311,324.86 = 157,467.60 : x - Step 2: Convert to fraction form
207,331.20/311,324.86 = 157,467.60/x - Step 3: Cross multiply
207,331.20x = 311,324.86 × 157,467.60 - Step 4: Simplify right side
207,331.20x = 49,023,578,524.54 - Step 5: Solve for x
x = 49,023,578,524.54/207,331.20 - Step 6: Final answer
x = 236,450.56
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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.