Finding the Fourth Proportional to 331.99, 497.70 and 126.44
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Solution
The fourth proportional to 331.99, 497.70 and 126.44 is: 189.55
Step by Step Solution
- Step 1: Write the proportion equation
331.99 : 497.70 = 126.44 : x - Step 2: Convert to fraction form
331.99/497.70 = 126.44/x - Step 3: Cross multiply
331.99x = 497.70 × 126.44 - Step 4: Simplify right side
331.99x = 62,929.19 - Step 5: Solve for x
x = 62,929.19/331.99 - Step 6: Final answer
x = 189.55
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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.