Finding the Fourth Proportional to 399.26, 599.16 and 216.68
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Solution
The fourth proportional to 399.26, 599.16 and 216.68 is: 325.17
Step by Step Solution
- Step 1: Write the proportion equation
399.26 : 599.16 = 216.68 : x - Step 2: Convert to fraction form
399.26/599.16 = 216.68/x - Step 3: Cross multiply
399.26x = 599.16 × 216.68 - Step 4: Simplify right side
399.26x = 129,825.99 - Step 5: Solve for x
x = 129,825.99/399.26 - Step 6: Final answer
x = 325.17
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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.