Finding the Fourth Proportional to 394.06, 591.06 and 198.99
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Solution
The fourth proportional to 394.06, 591.06 and 198.99 is: 298.46
Step by Step Solution
- Step 1: Write the proportion equation
394.06 : 591.06 = 198.99 : x - Step 2: Convert to fraction form
394.06/591.06 = 198.99/x - Step 3: Cross multiply
394.06x = 591.06 × 198.99 - Step 4: Simplify right side
394.06x = 117,611.08 - Step 5: Solve for x
x = 117,611.08/394.06 - Step 6: Final answer
x = 298.46
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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.