Finding the Fourth Proportional to 252.98, 378.99 and 144.44
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Solution
The fourth proportional to 252.98, 378.99 and 144.44 is: 216.38
Step by Step Solution
- Step 1: Write the proportion equation
252.98 : 378.99 = 144.44 : x - Step 2: Convert to fraction form
252.98/378.99 = 144.44/x - Step 3: Cross multiply
252.98x = 378.99 × 144.44 - Step 4: Simplify right side
252.98x = 54,739.42 - Step 5: Solve for x
x = 54,739.42/252.98 - Step 6: Final answer
x = 216.38
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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.