Finding the Fourth Proportional to 464.24, 640.10 and 324.44
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Solution
The fourth proportional to 464.24, 640.10 and 324.44 is: 447.34
Step by Step Solution
- Step 1: Write the proportion equation
464.24 : 640.10 = 324.44 : x - Step 2: Convert to fraction form
464.24/640.10 = 324.44/x - Step 3: Cross multiply
464.24x = 640.10 × 324.44 - Step 4: Simplify right side
464.24x = 207,674.04 - Step 5: Solve for x
x = 207,674.04/464.24 - Step 6: Final answer
x = 447.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.