Finding the Fourth Proportional to 398.68, 550.18 and 232.99
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Solution
The fourth proportional to 398.68, 550.18 and 232.99 is: 321.53
Step by Step Solution
- Step 1: Write the proportion equation
398.68 : 550.18 = 232.99 : x - Step 2: Convert to fraction form
398.68/550.18 = 232.99/x - Step 3: Cross multiply
398.68x = 550.18 × 232.99 - Step 4: Simplify right side
398.68x = 128,185.27 - Step 5: Solve for x
x = 128,185.27/398.68 - Step 6: Final answer
x = 321.53
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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.