Finding the Fourth Proportional to 163.17, 244.80 and 145.17
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Solution
The fourth proportional to 163.17, 244.80 and 145.17 is: 217.80
Step by Step Solution
- Step 1: Write the proportion equation
163.17 : 244.80 = 145.17 : x - Step 2: Convert to fraction form
163.17/244.80 = 145.17/x - Step 3: Cross multiply
163.17x = 244.80 × 145.17 - Step 4: Simplify right side
163.17x = 35,537.62 - Step 5: Solve for x
x = 35,537.62/163.17 - Step 6: Final answer
x = 217.80
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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.