Finding the Fourth Proportional to 276.93, 382.11 and 178.69
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Solution
The fourth proportional to 276.93, 382.11 and 178.69 is: 246.56
Step by Step Solution
- Step 1: Write the proportion equation
276.93 : 382.11 = 178.69 : x - Step 2: Convert to fraction form
276.93/382.11 = 178.69/x - Step 3: Cross multiply
276.93x = 382.11 × 178.69 - Step 4: Simplify right side
276.93x = 68,279.24 - Step 5: Solve for x
x = 68,279.24/276.93 - Step 6: Final answer
x = 246.56
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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.