Finding the Fourth Proportional to 197.99, 296.90 and 76.19
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Solution
The fourth proportional to 197.99, 296.90 and 76.19 is: 114.25
Step by Step Solution
- Step 1: Write the proportion equation
197.99 : 296.90 = 76.19 : x - Step 2: Convert to fraction form
197.99/296.90 = 76.19/x - Step 3: Cross multiply
197.99x = 296.90 × 76.19 - Step 4: Simplify right side
197.99x = 22,619.23 - Step 5: Solve for x
x = 22,619.23/197.99 - Step 6: Final answer
x = 114.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.