Finding the Fourth Proportional to 324.30, 485.22 and 246.99
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Solution
The fourth proportional to 324.30, 485.22 and 246.99 is: 369.55
Step by Step Solution
- Step 1: Write the proportion equation
324.30 : 485.22 = 246.99 : x - Step 2: Convert to fraction form
324.30/485.22 = 246.99/x - Step 3: Cross multiply
324.30x = 485.22 × 246.99 - Step 4: Simplify right side
324.30x = 119,844.49 - Step 5: Solve for x
x = 119,844.49/324.30 - Step 6: Final answer
x = 369.55
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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.