Finding the Fourth Proportional to 464.26, 640.62 and 267.79
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Solution
The fourth proportional to 464.26, 640.62 and 267.79 is: 369.52
Step by Step Solution
- Step 1: Write the proportion equation
464.26 : 640.62 = 267.79 : x - Step 2: Convert to fraction form
464.26/640.62 = 267.79/x - Step 3: Cross multiply
464.26x = 640.62 × 267.79 - Step 4: Simplify right side
464.26x = 171,551.63 - Step 5: Solve for x
x = 171,551.63/464.26 - Step 6: Final answer
x = 369.52
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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.