Finding the Fourth Proportional to 170.92, 236.01 and 163.09
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Solution
The fourth proportional to 170.92, 236.01 and 163.09 is: 225.20
Step by Step Solution
- Step 1: Write the proportion equation
170.92 : 236.01 = 163.09 : x - Step 2: Convert to fraction form
170.92/236.01 = 163.09/x - Step 3: Cross multiply
170.92x = 236.01 × 163.09 - Step 4: Simplify right side
170.92x = 38,490.87 - Step 5: Solve for x
x = 38,490.87/170.92 - Step 6: Final answer
x = 225.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.