Finding the Third Proportional to 519 and 634.50
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Solution
The third proportional to 519 and 634.50 is: 775.70
Step by Step Solution
- Step 1: Write the proportion equation
519 : 634.50 = 634.50 : x - Step 2: Convert to fraction form
519/634.50 = 634.50/x - Step 3: Cross multiply
519x = 634.50 × 634.50 - Step 4: Simplify right side
519x = 402,590.25 - Step 5: Solve for x
x = 402,590.25/519 - Step 6: Final answer
x = 775.70
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Why These Related Problems?
These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.