Finding the Fourth Proportional to 149.44, 224.20 and 122.28
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Solution
The fourth proportional to 149.44, 224.20 and 122.28 is: 183.45
Step by Step Solution
- Step 1: Write the proportion equation
149.44 : 224.20 = 122.28 : x - Step 2: Convert to fraction form
149.44/224.20 = 122.28/x - Step 3: Cross multiply
149.44x = 224.20 × 122.28 - Step 4: Simplify right side
149.44x = 27,415.18 - Step 5: Solve for x
x = 27,415.18/149.44 - Step 6: Final answer
x = 183.45
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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.