Finding the Fourth Proportional to 163.91, 225.99 and 134.29
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Solution
The fourth proportional to 163.91, 225.99 and 134.29 is: 185.15
Step by Step Solution
- Step 1: Write the proportion equation
163.91 : 225.99 = 134.29 : x - Step 2: Convert to fraction form
163.91/225.99 = 134.29/x - Step 3: Cross multiply
163.91x = 225.99 × 134.29 - Step 4: Simplify right side
163.91x = 30,348.55 - Step 5: Solve for x
x = 30,348.55/163.91 - Step 6: Final answer
x = 185.15
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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.