Finding the Fourth Proportional to 170.24, 235.17 and 157.14
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Solution
The fourth proportional to 170.24, 235.17 and 157.14 is: 217.08
Step by Step Solution
- Step 1: Write the proportion equation
170.24 : 235.17 = 157.14 : x - Step 2: Convert to fraction form
170.24/235.17 = 157.14/x - Step 3: Cross multiply
170.24x = 235.17 × 157.14 - Step 4: Simplify right side
170.24x = 36,954.61 - Step 5: Solve for x
x = 36,954.61/170.24 - Step 6: Final answer
x = 217.08
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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.