Finding the Fourth Proportional to 274.13, 378.44 and 214.99
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Solution
The fourth proportional to 274.13, 378.44 and 214.99 is: 296.79
Step by Step Solution
- Step 1: Write the proportion equation
274.13 : 378.44 = 214.99 : x - Step 2: Convert to fraction form
274.13/378.44 = 214.99/x - Step 3: Cross multiply
274.13x = 378.44 × 214.99 - Step 4: Simplify right side
274.13x = 81,359.60 - Step 5: Solve for x
x = 81,359.60/274.13 - Step 6: Final answer
x = 296.79
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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.