Finding the Fourth Proportional to 163.55, 225.18 and 163.08
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Solution
The fourth proportional to 163.55, 225.18 and 163.08 is: 224.53
Step by Step Solution
- Step 1: Write the proportion equation
163.55 : 225.18 = 163.08 : x - Step 2: Convert to fraction form
163.55/225.18 = 163.08/x - Step 3: Cross multiply
163.55x = 225.18 × 163.08 - Step 4: Simplify right side
163.55x = 36,722.35 - Step 5: Solve for x
x = 36,722.35/163.55 - Step 6: Final answer
x = 224.53
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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.