Finding the Fourth Proportional to 394.19, 591.18 and 231.99
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Solution
The fourth proportional to 394.19, 591.18 and 231.99 is: 347.92
Step by Step Solution
- Step 1: Write the proportion equation
394.19 : 591.18 = 231.99 : x - Step 2: Convert to fraction form
394.19/591.18 = 231.99/x - Step 3: Cross multiply
394.19x = 591.18 × 231.99 - Step 4: Simplify right side
394.19x = 137,147.85 - Step 5: Solve for x
x = 137,147.85/394.19 - Step 6: Final answer
x = 347.92
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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.