Finding the Fourth Proportional to 283.70, 425.57 and 161.87
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Solution
The fourth proportional to 283.70, 425.57 and 161.87 is: 242.80
Step by Step Solution
- Step 1: Write the proportion equation
283.70 : 425.57 = 161.87 : x - Step 2: Convert to fraction form
283.70/425.57 = 161.87/x - Step 3: Cross multiply
283.70x = 425.57 × 161.87 - Step 4: Simplify right side
283.70x = 68,884.08 - Step 5: Solve for x
x = 68,884.08/283.70 - Step 6: Final answer
x = 242.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.