Finding the Fourth Proportional to 394.67, 591.19 and 286.13
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Solution
The fourth proportional to 394.67, 591.19 and 286.13 is: 428.60
Step by Step Solution
- Step 1: Write the proportion equation
394.67 : 591.19 = 286.13 : x - Step 2: Convert to fraction form
394.67/591.19 = 286.13/x - Step 3: Cross multiply
394.67x = 591.19 × 286.13 - Step 4: Simplify right side
394.67x = 169,157.19 - Step 5: Solve for x
x = 169,157.19/394.67 - Step 6: Final answer
x = 428.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.