Finding the Fourth Proportional to 163.92, 226.26 and 129
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Solution
The fourth proportional to 163.92, 226.26 and 129 is: 178.06
Step by Step Solution
- Step 1: Write the proportion equation
163.92 : 226.26 = 129 : x - Step 2: Convert to fraction form
163.92/226.26 = 129/x - Step 3: Cross multiply
163.92x = 226.26 × 129 - Step 4: Simplify right side
163.92x = 29,187.54 - Step 5: Solve for x
x = 29,187.54/163.92 - Step 6: Final answer
x = 178.06
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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.