Finding the Fourth Proportional to 161.16, 241.71 and 108.99
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Solution
The fourth proportional to 161.16, 241.71 and 108.99 is: 163.46
Step by Step Solution
- Step 1: Write the proportion equation
161.16 : 241.71 = 108.99 : x - Step 2: Convert to fraction form
161.16/241.71 = 108.99/x - Step 3: Cross multiply
161.16x = 241.71 × 108.99 - Step 4: Simplify right side
161.16x = 26,343.97 - Step 5: Solve for x
x = 26,343.97/161.16 - Step 6: Final answer
x = 163.46
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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.