Finding the Fourth Proportional to 463.63, 640.08 and 277.18
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Solution
The fourth proportional to 463.63, 640.08 and 277.18 is: 382.67
Step by Step Solution
- Step 1: Write the proportion equation
463.63 : 640.08 = 277.18 : x - Step 2: Convert to fraction form
463.63/640.08 = 277.18/x - Step 3: Cross multiply
463.63x = 640.08 × 277.18 - Step 4: Simplify right side
463.63x = 177,415.75 - Step 5: Solve for x
x = 177,415.75/463.63 - Step 6: Final answer
x = 382.67
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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.