Finding the Third Proportional to 402 and 519.50
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Solution
The third proportional to 402 and 519.50 is: 671.34
Step by Step Solution
- Step 1: Write the proportion equation
402 : 519.50 = 519.50 : x - Step 2: Convert to fraction form
402/519.50 = 519.50/x - Step 3: Cross multiply
402x = 519.50 × 519.50 - Step 4: Simplify right side
402x = 269,880.25 - Step 5: Solve for x
x = 269,880.25/402 - Step 6: Final answer
x = 671.34
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Why These Related Problems?
These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.