Finding the Fourth Proportional to 207,906.10, 311,398.35 and 161,006.90
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Solution
The fourth proportional to 207,906.10, 311,398.35 and 161,006.90 is: 241,153.50
Step by Step Solution
- Step 1: Write the proportion equation
207,906.10 : 311,398.35 = 161,006.90 : x - Step 2: Convert to fraction form
207,906.10/311,398.35 = 161,006.90/x - Step 3: Cross multiply
207,906.10x = 311,398.35 × 161,006.90 - Step 4: Simplify right side
207,906.10x = 50,137,282,998.62 - Step 5: Solve for x
x = 50,137,282,998.62/207,906.10 - Step 6: Final answer
x = 241,153.50
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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.