Finding the Third Proportional to 306 and 680.50
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Solution
The third proportional to 306 and 680.50 is: 1,513.33
Step by Step Solution
- Step 1: Write the proportion equation
306 : 680.50 = 680.50 : x - Step 2: Convert to fraction form
306/680.50 = 680.50/x - Step 3: Cross multiply
306x = 680.50 × 680.50 - Step 4: Simplify right side
306x = 463,080.25 - Step 5: Solve for x
x = 463,080.25/306 - Step 6: Final answer
x = 1,513.33
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Why These Related Problems?
These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.