Finding the Fourth Proportional to 297.81, 446.77 and 115.19
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Solution
The fourth proportional to 297.81, 446.77 and 115.19 is: 172.80
Step by Step Solution
- Step 1: Write the proportion equation
297.81 : 446.77 = 115.19 : x - Step 2: Convert to fraction form
297.81/446.77 = 115.19/x - Step 3: Cross multiply
297.81x = 446.77 × 115.19 - Step 4: Simplify right side
297.81x = 51,460.91 - Step 5: Solve for x
x = 51,460.91/297.81 - Step 6: Final answer
x = 172.80
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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.