Finding the Fourth Proportional to 252.63, 379.05 and 122.70
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Solution
The fourth proportional to 252.63, 379.05 and 122.70 is: 184.10
Step by Step Solution
- Step 1: Write the proportion equation
252.63 : 379.05 = 122.70 : x - Step 2: Convert to fraction form
252.63/379.05 = 122.70/x - Step 3: Cross multiply
252.63x = 379.05 × 122.70 - Step 4: Simplify right side
252.63x = 46,509.44 - Step 5: Solve for x
x = 46,509.44/252.63 - Step 6: Final answer
x = 184.10
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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.