Finding the Fourth Proportional to 213.18, 293.62 and 163.96
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Solution
The fourth proportional to 213.18, 293.62 and 163.96 is: 225.83
Step by Step Solution
- Step 1: Write the proportion equation
213.18 : 293.62 = 163.96 : x - Step 2: Convert to fraction form
213.18/293.62 = 163.96/x - Step 3: Cross multiply
213.18x = 293.62 × 163.96 - Step 4: Simplify right side
213.18x = 48,141.94 - Step 5: Solve for x
x = 48,141.94/213.18 - Step 6: Final answer
x = 225.83
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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.