Finding the Fourth Proportional to 181.21, 250.09 and 107.53
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Solution
The fourth proportional to 181.21, 250.09 and 107.53 is: 148.40
Step by Step Solution
- Step 1: Write the proportion equation
181.21 : 250.09 = 107.53 : x - Step 2: Convert to fraction form
181.21/250.09 = 107.53/x - Step 3: Cross multiply
181.21x = 250.09 × 107.53 - Step 4: Simplify right side
181.21x = 26,891.64 - Step 5: Solve for x
x = 26,891.64/181.21 - Step 6: Final answer
x = 148.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.