Finding the Fourth Proportional to 331.26, 457.18 and 214.62
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Solution
The fourth proportional to 331.26, 457.18 and 214.62 is: 296.20
Step by Step Solution
- Step 1: Write the proportion equation
331.26 : 457.18 = 214.62 : x - Step 2: Convert to fraction form
331.26/457.18 = 214.62/x - Step 3: Cross multiply
331.26x = 457.18 × 214.62 - Step 4: Simplify right side
331.26x = 98,119.97 - Step 5: Solve for x
x = 98,119.97/331.26 - Step 6: Final answer
x = 296.20
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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.