Finding the Fourth Proportional to 331.63, 496.99 and 125.99
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Solution
The fourth proportional to 331.63, 496.99 and 125.99 is: 188.82
Step by Step Solution
- Step 1: Write the proportion equation
331.63 : 496.99 = 125.99 : x - Step 2: Convert to fraction form
331.63/496.99 = 125.99/x - Step 3: Cross multiply
331.63x = 496.99 × 125.99 - Step 4: Simplify right side
331.63x = 62,616.70 - Step 5: Solve for x
x = 62,616.70/331.63 - Step 6: Final answer
x = 188.82
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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.