Finding the Fourth Proportional to 229.44, 316.26 and 155.70
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Solution
The fourth proportional to 229.44, 316.26 and 155.70 is: 214.62
Step by Step Solution
- Step 1: Write the proportion equation
229.44 : 316.26 = 155.70 : x - Step 2: Convert to fraction form
229.44/316.26 = 155.70/x - Step 3: Cross multiply
229.44x = 316.26 × 155.70 - Step 4: Simplify right side
229.44x = 49,241.68 - Step 5: Solve for x
x = 49,241.68/229.44 - Step 6: Final answer
x = 214.62
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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.