Finding the Fourth Proportional to 161.24, 241.67 and 79.99
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Solution
The fourth proportional to 161.24, 241.67 and 79.99 is: 119.89
Step by Step Solution
- Step 1: Write the proportion equation
161.24 : 241.67 = 79.99 : x - Step 2: Convert to fraction form
161.24/241.67 = 79.99/x - Step 3: Cross multiply
161.24x = 241.67 × 79.99 - Step 4: Simplify right side
161.24x = 19,330.78 - Step 5: Solve for x
x = 19,330.78/161.24 - Step 6: Final answer
x = 119.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.