Finding the Fourth Proportional to 163.26, 224.19 and 157.19
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Solution
The fourth proportional to 163.26, 224.19 and 157.19 is: 215.85
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 224.19 = 157.19 : x - Step 2: Convert to fraction form
163.26/224.19 = 157.19/x - Step 3: Cross multiply
163.26x = 224.19 × 157.19 - Step 4: Simplify right side
163.26x = 35,239.31 - Step 5: Solve for x
x = 35,239.31/163.26 - Step 6: Final answer
x = 215.85
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.