Finding the Fourth Proportional to 252.86, 379.26 and 122.96
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Solution
The fourth proportional to 252.86, 379.26 and 122.96 is: 184.43
Step by Step Solution
- Step 1: Write the proportion equation
252.86 : 379.26 = 122.96 : x - Step 2: Convert to fraction form
252.86/379.26 = 122.96/x - Step 3: Cross multiply
252.86x = 379.26 × 122.96 - Step 4: Simplify right side
252.86x = 46,634.76 - Step 5: Solve for x
x = 46,634.76/252.86 - Step 6: Final answer
x = 184.43
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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.