Finding the Fourth Proportional to 274.62, 378.75 and 170.94
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Solution
The fourth proportional to 274.62, 378.75 and 170.94 is: 235.76
Step by Step Solution
- Step 1: Write the proportion equation
274.62 : 378.75 = 170.94 : x - Step 2: Convert to fraction form
274.62/378.75 = 170.94/x - Step 3: Cross multiply
274.62x = 378.75 × 170.94 - Step 4: Simplify right side
274.62x = 64,743.53 - Step 5: Solve for x
x = 64,743.53/274.62 - Step 6: Final answer
x = 235.76
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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.