Finding the Fourth Proportional to 464.27, 640.44 and 277.70
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Solution
The fourth proportional to 464.27, 640.44 and 277.70 is: 383.07
Step by Step Solution
- Step 1: Write the proportion equation
464.27 : 640.44 = 277.70 : x - Step 2: Convert to fraction form
464.27/640.44 = 277.70/x - Step 3: Cross multiply
464.27x = 640.44 × 277.70 - Step 4: Simplify right side
464.27x = 177,846.99 - Step 5: Solve for x
x = 177,846.99/464.27 - Step 6: Final answer
x = 383.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.