Finding the Fourth Proportional to 276.44, 381.64 and 214.13
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Solution
The fourth proportional to 276.44, 381.64 and 214.13 is: 295.62
Step by Step Solution
- Step 1: Write the proportion equation
276.44 : 381.64 = 214.13 : x - Step 2: Convert to fraction form
276.44/381.64 = 214.13/x - Step 3: Cross multiply
276.44x = 381.64 × 214.13 - Step 4: Simplify right side
276.44x = 81,720.99 - Step 5: Solve for x
x = 81,720.99/276.44 - Step 6: Final answer
x = 295.62
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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.