Finding the Fourth Proportional to 181.19, 249.99 and 107.50
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Solution
The fourth proportional to 181.19, 249.99 and 107.50 is: 148.32
Step by Step Solution
- Step 1: Write the proportion equation
181.19 : 249.99 = 107.50 : x - Step 2: Convert to fraction form
181.19/249.99 = 107.50/x - Step 3: Cross multiply
181.19x = 249.99 × 107.50 - Step 4: Simplify right side
181.19x = 26,873.93 - Step 5: Solve for x
x = 26,873.93/181.19 - Step 6: Final answer
x = 148.32
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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.