Finding the Third Proportional to 190 and 398
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Solution
The third proportional to 190 and 398 is: 833.71
Step by Step Solution
- Step 1: Write the proportion equation
190 : 398 = 398 : x - Step 2: Convert to fraction form
190/398 = 398/x - Step 3: Cross multiply
190x = 398 × 398 - Step 4: Simplify right side
190x = 158,404 - Step 5: Solve for x
x = 158,404/190 - Step 6: Final answer
x = 833.71
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These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.