Finding the Fourth Proportional to 321.18, 482.07 and 174.99
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Solution
The fourth proportional to 321.18, 482.07 and 174.99 is: 262.65
Step by Step Solution
- Step 1: Write the proportion equation
321.18 : 482.07 = 174.99 : x - Step 2: Convert to fraction form
321.18/482.07 = 174.99/x - Step 3: Cross multiply
321.18x = 482.07 × 174.99 - Step 4: Simplify right side
321.18x = 84,357.43 - Step 5: Solve for x
x = 84,357.43/321.18 - Step 6: Final answer
x = 262.65
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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.