Finding the Third Proportional to 311 and 609
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Solution
The third proportional to 311 and 609 is: 1,192.54
Step by Step Solution
- Step 1: Write the proportion equation
311 : 609 = 609 : x - Step 2: Convert to fraction form
311/609 = 609/x - Step 3: Cross multiply
311x = 609 × 609 - Step 4: Simplify right side
311x = 370,881 - Step 5: Solve for x
x = 370,881/311 - Step 6: Final answer
x = 1,192.54
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These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.