Finding the Fourth Proportional to 160.91, 241.44 and 79.74
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Solution
The fourth proportional to 160.91, 241.44 and 79.74 is: 119.65
Step by Step Solution
- Step 1: Write the proportion equation
160.91 : 241.44 = 79.74 : x - Step 2: Convert to fraction form
160.91/241.44 = 79.74/x - Step 3: Cross multiply
160.91x = 241.44 × 79.74 - Step 4: Simplify right side
160.91x = 19,252.43 - Step 5: Solve for x
x = 19,252.43/160.91 - Step 6: Final answer
x = 119.65
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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.