Finding the Fourth Proportional to 122.62, 183.99 and 120.28
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Solution
The fourth proportional to 122.62, 183.99 and 120.28 is: 180.48
Step by Step Solution
- Step 1: Write the proportion equation
122.62 : 183.99 = 120.28 : x - Step 2: Convert to fraction form
122.62/183.99 = 120.28/x - Step 3: Cross multiply
122.62x = 183.99 × 120.28 - Step 4: Simplify right side
122.62x = 22,130.32 - Step 5: Solve for x
x = 22,130.32/122.62 - Step 6: Final answer
x = 180.48
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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.