Finding the Fourth Proportional to 252.99, 378.96 and 188.05
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Solution
The fourth proportional to 252.99, 378.96 and 188.05 is: 281.68
Step by Step Solution
- Step 1: Write the proportion equation
252.99 : 378.96 = 188.05 : x - Step 2: Convert to fraction form
252.99/378.96 = 188.05/x - Step 3: Cross multiply
252.99x = 378.96 × 188.05 - Step 4: Simplify right side
252.99x = 71,263.43 - Step 5: Solve for x
x = 71,263.43/252.99 - Step 6: Final answer
x = 281.68
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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.