Finding the Fourth Proportional to 163.62, 245.35 and 98.68
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Solution
The fourth proportional to 163.62, 245.35 and 98.68 is: 147.97
Step by Step Solution
- Step 1: Write the proportion equation
163.62 : 245.35 = 98.68 : x - Step 2: Convert to fraction form
163.62/245.35 = 98.68/x - Step 3: Cross multiply
163.62x = 245.35 × 98.68 - Step 4: Simplify right side
163.62x = 24,211.14 - Step 5: Solve for x
x = 24,211.14/163.62 - Step 6: Final answer
x = 147.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.