Finding the Fourth Proportional to 309.99, 464.62 and 218.19
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Solution
The fourth proportional to 309.99, 464.62 and 218.19 is: 327.03
Step by Step Solution
- Step 1: Write the proportion equation
309.99 : 464.62 = 218.19 : x - Step 2: Convert to fraction form
309.99/464.62 = 218.19/x - Step 3: Cross multiply
309.99x = 464.62 × 218.19 - Step 4: Simplify right side
309.99x = 101,375.44 - Step 5: Solve for x
x = 101,375.44/309.99 - Step 6: Final answer
x = 327.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.