Finding the Third Proportional to 378 and 554
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Solution
The third proportional to 378 and 554 is: 811.95
Step by Step Solution
- Step 1: Write the proportion equation
378 : 554 = 554 : x - Step 2: Convert to fraction form
378/554 = 554/x - Step 3: Cross multiply
378x = 554 × 554 - Step 4: Simplify right side
378x = 306,916 - Step 5: Solve for x
x = 306,916/378 - Step 6: Final answer
x = 811.95
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.