Finding the Fourth Proportional to 163.79, 225.97 and 148.19
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Solution
The fourth proportional to 163.79, 225.97 and 148.19 is: 204.45
Step by Step Solution
- Step 1: Write the proportion equation
163.79 : 225.97 = 148.19 : x - Step 2: Convert to fraction form
163.79/225.97 = 148.19/x - Step 3: Cross multiply
163.79x = 225.97 × 148.19 - Step 4: Simplify right side
163.79x = 33,486.49 - Step 5: Solve for x
x = 33,486.49/163.79 - Step 6: Final answer
x = 204.45
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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.