Finding the Fourth Proportional to 252.25, 378.44 and 130.58
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Solution
The fourth proportional to 252.25, 378.44 and 130.58 is: 195.90
Step by Step Solution
- Step 1: Write the proportion equation
252.25 : 378.44 = 130.58 : x - Step 2: Convert to fraction form
252.25/378.44 = 130.58/x - Step 3: Cross multiply
252.25x = 378.44 × 130.58 - Step 4: Simplify right side
252.25x = 49,416.06 - Step 5: Solve for x
x = 49,416.06/252.25 - Step 6: Final answer
x = 195.90
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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.