Finding the Third Proportional to 517 and 580
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Solution
The third proportional to 517 and 580 is: 650.68
Step by Step Solution
- Step 1: Write the proportion equation
517 : 580 = 580 : x - Step 2: Convert to fraction form
517/580 = 580/x - Step 3: Cross multiply
517x = 580 × 580 - Step 4: Simplify right side
517x = 336,400 - Step 5: Solve for x
x = 336,400/517 - Step 6: Final answer
x = 650.68
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Why These Related Problems?
These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.