Finding the Third Proportional to 217.50 and 335.25
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Solution
The third proportional to 217.50 and 335.25 is: 516.75
Step by Step Solution
- Step 1: Write the proportion equation
217.50 : 335.25 = 335.25 : x - Step 2: Convert to fraction form
217.50/335.25 = 335.25/x - Step 3: Cross multiply
217.50x = 335.25 × 335.25 - Step 4: Simplify right side
217.50x = 112,392.56 - Step 5: Solve for x
x = 112,392.56/217.50 - Step 6: Final answer
x = 516.75
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.