Finding the Fourth Proportional to 163.16, 224.96 and 140.99
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Solution
The fourth proportional to 163.16, 224.96 and 140.99 is: 194.39
Step by Step Solution
- Step 1: Write the proportion equation
163.16 : 224.96 = 140.99 : x - Step 2: Convert to fraction form
163.16/224.96 = 140.99/x - Step 3: Cross multiply
163.16x = 224.96 × 140.99 - Step 4: Simplify right side
163.16x = 31,717.11 - Step 5: Solve for x
x = 31,717.11/163.16 - Step 6: Final answer
x = 194.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.