Finding the Fourth Proportional to 283.28, 425.14 and 161.78
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Solution
The fourth proportional to 283.28, 425.14 and 161.78 is: 242.80
Step by Step Solution
- Step 1: Write the proportion equation
283.28 : 425.14 = 161.78 : x - Step 2: Convert to fraction form
283.28/425.14 = 161.78/x - Step 3: Cross multiply
283.28x = 425.14 × 161.78 - Step 4: Simplify right side
283.28x = 68,779.15 - Step 5: Solve for x
x = 68,779.15/283.28 - 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.