Finding the Fourth Proportional to 216.74, 324.98 and 170.94
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Solution
The fourth proportional to 216.74, 324.98 and 170.94 is: 256.31
Step by Step Solution
- Step 1: Write the proportion equation
216.74 : 324.98 = 170.94 : x - Step 2: Convert to fraction form
216.74/324.98 = 170.94/x - Step 3: Cross multiply
216.74x = 324.98 × 170.94 - Step 4: Simplify right side
216.74x = 55,551.23 - Step 5: Solve for x
x = 55,551.23/216.74 - Step 6: Final answer
x = 256.31
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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.