Finding the Fourth Proportional to 320.25, 441.99 and 195.92
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Solution
The fourth proportional to 320.25, 441.99 and 195.92 is: 270.39
Step by Step Solution
- Step 1: Write the proportion equation
320.25 : 441.99 = 195.92 : x - Step 2: Convert to fraction form
320.25/441.99 = 195.92/x - Step 3: Cross multiply
320.25x = 441.99 × 195.92 - Step 4: Simplify right side
320.25x = 86,594.13 - Step 5: Solve for x
x = 86,594.13/320.25 - Step 6: Final answer
x = 270.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.