Finding the Fourth Proportional to 242.26, 363.45 and 79.99
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Solution
The fourth proportional to 242.26, 363.45 and 79.99 is: 120.00
Step by Step Solution
- Step 1: Write the proportion equation
242.26 : 363.45 = 79.99 : x - Step 2: Convert to fraction form
242.26/363.45 = 79.99/x - Step 3: Cross multiply
242.26x = 363.45 × 79.99 - Step 4: Simplify right side
242.26x = 29,071.76 - Step 5: Solve for x
x = 29,071.76/242.26 - Step 6: Final answer
x = 120.00
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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.