Finding the Fourth Proportional to 274.13, 378.14 and 169.26
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Solution
The fourth proportional to 274.13, 378.14 and 169.26 is: 233.48
Step by Step Solution
- Step 1: Write the proportion equation
274.13 : 378.14 = 169.26 : x - Step 2: Convert to fraction form
274.13/378.14 = 169.26/x - Step 3: Cross multiply
274.13x = 378.14 × 169.26 - Step 4: Simplify right side
274.13x = 64,003.13 - Step 5: Solve for x
x = 64,003.13/274.13 - Step 6: Final answer
x = 233.48
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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.