Finding the Fourth Proportional to 464.13, 640.49 and 277.52
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Solution
The fourth proportional to 464.13, 640.49 and 277.52 is: 382.96
Step by Step Solution
- Step 1: Write the proportion equation
464.13 : 640.49 = 277.52 : x - Step 2: Convert to fraction form
464.13/640.49 = 277.52/x - Step 3: Cross multiply
464.13x = 640.49 × 277.52 - Step 4: Simplify right side
464.13x = 177,745.24 - Step 5: Solve for x
x = 177,745.24/464.13 - Step 6: Final answer
x = 382.96
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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.