Finding the Fourth Proportional to 331.23, 497.01 and 221.62
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Solution
The fourth proportional to 331.23, 497.01 and 221.62 is: 332.54
Step by Step Solution
- Step 1: Write the proportion equation
331.23 : 497.01 = 221.62 : x - Step 2: Convert to fraction form
331.23/497.01 = 221.62/x - Step 3: Cross multiply
331.23x = 497.01 × 221.62 - Step 4: Simplify right side
331.23x = 110,147.36 - Step 5: Solve for x
x = 110,147.36/331.23 - Step 6: Final answer
x = 332.54
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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.