Finding the Fourth Proportional to 226.28, 339.35 and 81.99
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Solution
The fourth proportional to 226.28, 339.35 and 81.99 is: 122.96
Step by Step Solution
- Step 1: Write the proportion equation
226.28 : 339.35 = 81.99 : x - Step 2: Convert to fraction form
226.28/339.35 = 81.99/x - Step 3: Cross multiply
226.28x = 339.35 × 81.99 - Step 4: Simplify right side
226.28x = 27,822.90 - Step 5: Solve for x
x = 27,822.90/226.28 - Step 6: Final answer
x = 122.96
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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.