Finding the Fourth Proportional to 170.73, 235.31 and 126.99
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Solution
The fourth proportional to 170.73, 235.31 and 126.99 is: 175.02
Step by Step Solution
- Step 1: Write the proportion equation
170.73 : 235.31 = 126.99 : x - Step 2: Convert to fraction form
170.73/235.31 = 126.99/x - Step 3: Cross multiply
170.73x = 235.31 × 126.99 - Step 4: Simplify right side
170.73x = 29,881.38 - Step 5: Solve for x
x = 29,881.38/170.73 - Step 6: Final answer
x = 175.02
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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.