Finding the Fourth Proportional to 144.99, 217.58 and 108.99
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Solution
The fourth proportional to 144.99, 217.58 and 108.99 is: 163.55
Step by Step Solution
- Step 1: Write the proportion equation
144.99 : 217.58 = 108.99 : x - Step 2: Convert to fraction form
144.99/217.58 = 108.99/x - Step 3: Cross multiply
144.99x = 217.58 × 108.99 - Step 4: Simplify right side
144.99x = 23,713.50 - Step 5: Solve for x
x = 23,713.50/144.99 - Step 6: Final answer
x = 163.55
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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.