Finding the Fourth Proportional to 144.28, 198.99 and 108.67
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Solution
The fourth proportional to 144.28, 198.99 and 108.67 is: 149.88
Step by Step Solution
- Step 1: Write the proportion equation
144.28 : 198.99 = 108.67 : x - Step 2: Convert to fraction form
144.28/198.99 = 108.67/x - Step 3: Cross multiply
144.28x = 198.99 × 108.67 - Step 4: Simplify right side
144.28x = 21,624.24 - Step 5: Solve for x
x = 21,624.24/144.28 - Step 6: Final answer
x = 149.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.