Finding the Fourth Proportional to 163.36, 224.19 and 159.28
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Solution
The fourth proportional to 163.36, 224.19 and 159.28 is: 218.59
Step by Step Solution
- Step 1: Write the proportion equation
163.36 : 224.19 = 159.28 : x - Step 2: Convert to fraction form
163.36/224.19 = 159.28/x - Step 3: Cross multiply
163.36x = 224.19 × 159.28 - Step 4: Simplify right side
163.36x = 35,708.98 - Step 5: Solve for x
x = 35,708.98/163.36 - Step 6: Final answer
x = 218.59
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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.