Finding the Fourth Proportional to 331.38, 497.21 and 177.26
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Solution
The fourth proportional to 331.38, 497.21 and 177.26 is: 265.96
Step by Step Solution
- Step 1: Write the proportion equation
331.38 : 497.21 = 177.26 : x - Step 2: Convert to fraction form
331.38/497.21 = 177.26/x - Step 3: Cross multiply
331.38x = 497.21 × 177.26 - Step 4: Simplify right side
331.38x = 88,135.44 - Step 5: Solve for x
x = 88,135.44/331.38 - Step 6: Final answer
x = 265.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.