Finding the Fourth Proportional to 297.42, 446.10 and 80.99
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Solution
The fourth proportional to 297.42, 446.10 and 80.99 is: 121.47
Step by Step Solution
- Step 1: Write the proportion equation
297.42 : 446.10 = 80.99 : x - Step 2: Convert to fraction form
297.42/446.10 = 80.99/x - Step 3: Cross multiply
297.42x = 446.10 × 80.99 - Step 4: Simplify right side
297.42x = 36,127.41 - Step 5: Solve for x
x = 36,127.41/297.42 - Step 6: Final answer
x = 121.47
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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.