Finding the Fourth Proportional to 163.53, 246.18 and 141.21
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Solution
The fourth proportional to 163.53, 246.18 and 141.21 is: 212.58
Step by Step Solution
- Step 1: Write the proportion equation
163.53 : 246.18 = 141.21 : x - Step 2: Convert to fraction form
163.53/246.18 = 141.21/x - Step 3: Cross multiply
163.53x = 246.18 × 141.21 - Step 4: Simplify right side
163.53x = 34,763.08 - Step 5: Solve for x
x = 34,763.08/163.53 - Step 6: Final answer
x = 212.58
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.