Finding the Fourth Proportional to 226.11, 339.21 and 145.02
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Solution
The fourth proportional to 226.11, 339.21 and 145.02 is: 217.56
Step by Step Solution
- Step 1: Write the proportion equation
226.11 : 339.21 = 145.02 : x - Step 2: Convert to fraction form
226.11/339.21 = 145.02/x - Step 3: Cross multiply
226.11x = 339.21 × 145.02 - Step 4: Simplify right side
226.11x = 49,192.23 - Step 5: Solve for x
x = 49,192.23/226.11 - Step 6: Final answer
x = 217.56
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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.