Finding the Fourth Proportional to 149.44, 224.28 and 115.29
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Solution
The fourth proportional to 149.44, 224.28 and 115.29 is: 173.03
Step by Step Solution
- Step 1: Write the proportion equation
149.44 : 224.28 = 115.29 : x - Step 2: Convert to fraction form
149.44/224.28 = 115.29/x - Step 3: Cross multiply
149.44x = 224.28 × 115.29 - Step 4: Simplify right side
149.44x = 25,857.24 - Step 5: Solve for x
x = 25,857.24/149.44 - Step 6: Final answer
x = 173.03
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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.