Finding the Fourth Proportional to 226.44, 312.49 and 122.94
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Solution
The fourth proportional to 226.44, 312.49 and 122.94 is: 169.66
Step by Step Solution
- Step 1: Write the proportion equation
226.44 : 312.49 = 122.94 : x - Step 2: Convert to fraction form
226.44/312.49 = 122.94/x - Step 3: Cross multiply
226.44x = 312.49 × 122.94 - Step 4: Simplify right side
226.44x = 38,416.91 - Step 5: Solve for x
x = 38,416.91/226.44 - Step 6: Final answer
x = 169.66
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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.