Finding the Third Proportional to 122 and 306
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Solution
The third proportional to 122 and 306 is: 767.51
Step by Step Solution
- Step 1: Write the proportion equation
122 : 306 = 306 : x - Step 2: Convert to fraction form
122/306 = 306/x - Step 3: Cross multiply
122x = 306 × 306 - Step 4: Simplify right side
122x = 93,636 - Step 5: Solve for x
x = 93,636/122 - Step 6: Final answer
x = 767.51
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Why These Related Problems?
These problems maintain the same ratio (2.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.