Finding the Fourth Proportional to 209.97, 314.34 and 168.99
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Solution
The fourth proportional to 209.97, 314.34 and 168.99 is: 252.99
Step by Step Solution
- Step 1: Write the proportion equation
209.97 : 314.34 = 168.99 : x - Step 2: Convert to fraction form
209.97/314.34 = 168.99/x - Step 3: Cross multiply
209.97x = 314.34 × 168.99 - Step 4: Simplify right side
209.97x = 53,120.32 - Step 5: Solve for x
x = 53,120.32/209.97 - Step 6: Final answer
x = 252.99
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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.