Finding the Fourth Proportional to 273.99, 410.99 and 81.62
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Solution
The fourth proportional to 273.99, 410.99 and 81.62 is: 122.43
Step by Step Solution
- Step 1: Write the proportion equation
273.99 : 410.99 = 81.62 : x - Step 2: Convert to fraction form
273.99/410.99 = 81.62/x - Step 3: Cross multiply
273.99x = 410.99 × 81.62 - Step 4: Simplify right side
273.99x = 33,543.98 - Step 5: Solve for x
x = 33,543.98/273.99 - Step 6: Final answer
x = 122.43
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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.