Finding the Fourth Proportional to 122.94, 184.44 and 115.68
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Solution
The fourth proportional to 122.94, 184.44 and 115.68 is: 173.55
Step by Step Solution
- Step 1: Write the proportion equation
122.94 : 184.44 = 115.68 : x - Step 2: Convert to fraction form
122.94/184.44 = 115.68/x - Step 3: Cross multiply
122.94x = 184.44 × 115.68 - Step 4: Simplify right side
122.94x = 21,336.02 - Step 5: Solve for x
x = 21,336.02/122.94 - Step 6: Final answer
x = 173.55
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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.