Finding the Fourth Proportional to 163.93, 226.29 and 117.31
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Solution
The fourth proportional to 163.93, 226.29 and 117.31 is: 161.94
Step by Step Solution
- Step 1: Write the proportion equation
163.93 : 226.29 = 117.31 : x - Step 2: Convert to fraction form
163.93/226.29 = 117.31/x - Step 3: Cross multiply
163.93x = 226.29 × 117.31 - Step 4: Simplify right side
163.93x = 26,546.08 - Step 5: Solve for x
x = 26,546.08/163.93 - Step 6: Final answer
x = 161.94
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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.