Finding the Fourth Proportional to 198.28, 297.44 and 54
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Solution
The fourth proportional to 198.28, 297.44 and 54 is: 81.00
Step by Step Solution
- Step 1: Write the proportion equation
198.28 : 297.44 = 54 : x - Step 2: Convert to fraction form
198.28/297.44 = 54/x - Step 3: Cross multiply
198.28x = 297.44 × 54 - Step 4: Simplify right side
198.28x = 16,061.69 - Step 5: Solve for x
x = 16,061.69/198.28 - Step 6: Final answer
x = 81.00
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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.