Finding the Fourth Proportional to 252.90, 349.09 and 170.21
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Solution
The fourth proportional to 252.90, 349.09 and 170.21 is: 234.95
Step by Step Solution
- Step 1: Write the proportion equation
252.90 : 349.09 = 170.21 : x - Step 2: Convert to fraction form
252.90/349.09 = 170.21/x - Step 3: Cross multiply
252.90x = 349.09 × 170.21 - Step 4: Simplify right side
252.90x = 59,419.06 - Step 5: Solve for x
x = 59,419.06/252.90 - Step 6: Final answer
x = 234.95
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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.