Finding the Fourth Proportional to 197.28, 273.63 and 189.99
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Solution
The fourth proportional to 197.28, 273.63 and 189.99 is: 263.52
Step by Step Solution
- Step 1: Write the proportion equation
197.28 : 273.63 = 189.99 : x - Step 2: Convert to fraction form
197.28/273.63 = 189.99/x - Step 3: Cross multiply
197.28x = 273.63 × 189.99 - Step 4: Simplify right side
197.28x = 51,986.96 - Step 5: Solve for x
x = 51,986.96/197.28 - Step 6: Final answer
x = 263.52
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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.