Finding the Fourth Proportional to 212.92, 293.48 and 163.70
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Solution
The fourth proportional to 212.92, 293.48 and 163.70 is: 225.64
Step by Step Solution
- Step 1: Write the proportion equation
212.92 : 293.48 = 163.70 : x - Step 2: Convert to fraction form
212.92/293.48 = 163.70/x - Step 3: Cross multiply
212.92x = 293.48 × 163.70 - Step 4: Simplify right side
212.92x = 48,042.68 - Step 5: Solve for x
x = 48,042.68/212.92 - Step 6: Final answer
x = 225.64
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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.