Finding the Fourth Proportional to 274.12, 378.18 and 170.44
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Solution
The fourth proportional to 274.12, 378.18 and 170.44 is: 235.14
Step by Step Solution
- Step 1: Write the proportion equation
274.12 : 378.18 = 170.44 : x - Step 2: Convert to fraction form
274.12/378.18 = 170.44/x - Step 3: Cross multiply
274.12x = 378.18 × 170.44 - Step 4: Simplify right side
274.12x = 64,457.00 - Step 5: Solve for x
x = 64,457.00/274.12 - Step 6: Final answer
x = 235.14
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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.