Finding the Fourth Proportional to 281.87, 388.97 and 163.84
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Solution
The fourth proportional to 281.87, 388.97 and 163.84 is: 226.09
Step by Step Solution
- Step 1: Write the proportion equation
281.87 : 388.97 = 163.84 : x - Step 2: Convert to fraction form
281.87/388.97 = 163.84/x - Step 3: Cross multiply
281.87x = 388.97 × 163.84 - Step 4: Simplify right side
281.87x = 63,726.08 - Step 5: Solve for x
x = 63,726.08/281.87 - Step 6: Final answer
x = 226.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.