Finding the Fourth Proportional to 163.19, 245.81 and 146.26
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Solution
The fourth proportional to 163.19, 245.81 and 146.26 is: 220.30
Step by Step Solution
- Step 1: Write the proportion equation
163.19 : 245.81 = 146.26 : x - Step 2: Convert to fraction form
163.19/245.81 = 146.26/x - Step 3: Cross multiply
163.19x = 245.81 × 146.26 - Step 4: Simplify right side
163.19x = 35,951.05 - Step 5: Solve for x
x = 35,951.05/163.19 - Step 6: Final answer
x = 220.30
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.