Finding the Fourth Proportional to 464.09, 640.55 and 277.70
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Solution
The fourth proportional to 464.09, 640.55 and 277.70 is: 383.28
Step by Step Solution
- Step 1: Write the proportion equation
464.09 : 640.55 = 277.70 : x - Step 2: Convert to fraction form
464.09/640.55 = 277.70/x - Step 3: Cross multiply
464.09x = 640.55 × 277.70 - Step 4: Simplify right side
464.09x = 177,876.14 - Step 5: Solve for x
x = 177,876.14/464.09 - Step 6: Final answer
x = 383.28
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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.