Finding the Third Proportional to 197.50 and 395
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Solution
The third proportional to 197.50 and 395 is: 790
Step by Step Solution
- Step 1: Write the proportion equation
197.50 : 395 = 395 : x - Step 2: Convert to fraction form
197.50/395 = 395/x - Step 3: Cross multiply
197.50x = 395 × 395 - Step 4: Simplify right side
197.50x = 156,025 - Step 5: Solve for x
x = 156,025/197.50 - Step 6: Final answer
x = 790
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Why These Related Problems?
These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.