Finding the Fourth Proportional to 398.99, 550.44 and 233.12
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Solution
The fourth proportional to 398.99, 550.44 and 233.12 is: 321.61
Step by Step Solution
- Step 1: Write the proportion equation
398.99 : 550.44 = 233.12 : x - Step 2: Convert to fraction form
398.99/550.44 = 233.12/x - Step 3: Cross multiply
398.99x = 550.44 × 233.12 - Step 4: Simplify right side
398.99x = 128,318.57 - Step 5: Solve for x
x = 128,318.57/398.99 - Step 6: Final answer
x = 321.61
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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.