Finding the Fourth Proportional to 252.03, 378.12 and 115.08
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Solution
The fourth proportional to 252.03, 378.12 and 115.08 is: 172.65
Step by Step Solution
- Step 1: Write the proportion equation
252.03 : 378.12 = 115.08 : x - Step 2: Convert to fraction form
252.03/378.12 = 115.08/x - Step 3: Cross multiply
252.03x = 378.12 × 115.08 - Step 4: Simplify right side
252.03x = 43,514.05 - Step 5: Solve for x
x = 43,514.05/252.03 - Step 6: Final answer
x = 172.65
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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.