Finding the Fourth Proportional to 274.64, 379.08 and 176.42
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Solution
The fourth proportional to 274.64, 379.08 and 176.42 is: 243.52
Step by Step Solution
- Step 1: Write the proportion equation
274.64 : 379.08 = 176.42 : x - Step 2: Convert to fraction form
274.64/379.08 = 176.42/x - Step 3: Cross multiply
274.64x = 379.08 × 176.42 - Step 4: Simplify right side
274.64x = 66,878.24 - Step 5: Solve for x
x = 66,878.24/274.64 - Step 6: Final answer
x = 243.52
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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.