Finding the Third Proportional to 394.50 and 708
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Solution
The third proportional to 394.50 and 708 is: 1,270.63
Step by Step Solution
- Step 1: Write the proportion equation
394.50 : 708 = 708 : x - Step 2: Convert to fraction form
394.50/708 = 708/x - Step 3: Cross multiply
394.50x = 708 × 708 - Step 4: Simplify right side
394.50x = 501,264 - Step 5: Solve for x
x = 501,264/394.50 - Step 6: Final answer
x = 1,270.63
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Why These Related Problems?
These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.