Finding the Fourth Proportional to 122.74, 183.99 and 50.64
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Solution
The fourth proportional to 122.74, 183.99 and 50.64 is: 75.91
Step by Step Solution
- Step 1: Write the proportion equation
122.74 : 183.99 = 50.64 : x - Step 2: Convert to fraction form
122.74/183.99 = 50.64/x - Step 3: Cross multiply
122.74x = 183.99 × 50.64 - Step 4: Simplify right side
122.74x = 9,317.25 - Step 5: Solve for x
x = 9,317.25/122.74 - Step 6: Final answer
x = 75.91
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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.