Finding the Third Proportional to 173 and 208.50
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Solution
The third proportional to 173 and 208.50 is: 251.28
Step by Step Solution
- Step 1: Write the proportion equation
173 : 208.50 = 208.50 : x - Step 2: Convert to fraction form
173/208.50 = 208.50/x - Step 3: Cross multiply
173x = 208.50 × 208.50 - Step 4: Simplify right side
173x = 43,472.25 - Step 5: Solve for x
x = 43,472.25/173 - Step 6: Final answer
x = 251.28
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.