Finding the Third Proportional to 338 and 428.50
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Solution
The third proportional to 338 and 428.50 is: 543.23
Step by Step Solution
- Step 1: Write the proportion equation
338 : 428.50 = 428.50 : x - Step 2: Convert to fraction form
338/428.50 = 428.50/x - Step 3: Cross multiply
338x = 428.50 × 428.50 - Step 4: Simplify right side
338x = 183,612.25 - Step 5: Solve for x
x = 183,612.25/338 - Step 6: Final answer
x = 543.23
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These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.