Finding the Third Proportional to 154 and 411
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Solution
The third proportional to 154 and 411 is: 1,096.89
Step by Step Solution
- Step 1: Write the proportion equation
154 : 411 = 411 : x - Step 2: Convert to fraction form
154/411 = 411/x - Step 3: Cross multiply
154x = 411 × 411 - Step 4: Simplify right side
154x = 168,921 - Step 5: Solve for x
x = 168,921/154 - Step 6: Final answer
x = 1,096.89
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Why These Related Problems?
These problems maintain the same ratio (2.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.