Finding the Fourth Proportional to 283.91, 391.84 and 178.92
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Solution
The fourth proportional to 283.91, 391.84 and 178.92 is: 246.94
Step by Step Solution
- Step 1: Write the proportion equation
283.91 : 391.84 = 178.92 : x - Step 2: Convert to fraction form
283.91/391.84 = 178.92/x - Step 3: Cross multiply
283.91x = 391.84 × 178.92 - Step 4: Simplify right side
283.91x = 70,108.07 - Step 5: Solve for x
x = 70,108.07/283.91 - Step 6: Final answer
x = 246.94
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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.