Finding the Fourth Proportional to 181.38, 250.26 and 107.70
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Solution
The fourth proportional to 181.38, 250.26 and 107.70 is: 148.60
Step by Step Solution
- Step 1: Write the proportion equation
181.38 : 250.26 = 107.70 : x - Step 2: Convert to fraction form
181.38/250.26 = 107.70/x - Step 3: Cross multiply
181.38x = 250.26 × 107.70 - Step 4: Simplify right side
181.38x = 26,953.00 - Step 5: Solve for x
x = 26,953.00/181.38 - Step 6: Final answer
x = 148.60
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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.