Finding the Third Proportional to 378 and 628
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Solution
The third proportional to 378 and 628 is: 1,043.34
Step by Step Solution
- Step 1: Write the proportion equation
378 : 628 = 628 : x - Step 2: Convert to fraction form
378/628 = 628/x - Step 3: Cross multiply
378x = 628 × 628 - Step 4: Simplify right side
378x = 394,384 - Step 5: Solve for x
x = 394,384/378 - Step 6: Final answer
x = 1,043.34
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These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.