Finding the Fourth Proportional to 161.11, 241.26 and 142.08
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Solution
The fourth proportional to 161.11, 241.26 and 142.08 is: 212.76
Step by Step Solution
- Step 1: Write the proportion equation
161.11 : 241.26 = 142.08 : x - Step 2: Convert to fraction form
161.11/241.26 = 142.08/x - Step 3: Cross multiply
161.11x = 241.26 × 142.08 - Step 4: Simplify right side
161.11x = 34,278.22 - Step 5: Solve for x
x = 34,278.22/161.11 - Step 6: Final answer
x = 212.76
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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.