Finding the Fourth Proportional to 170.93, 254.91 and 154.53
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Solution
The fourth proportional to 170.93, 254.91 and 154.53 is: 230.45
Step by Step Solution
- Step 1: Write the proportion equation
170.93 : 254.91 = 154.53 : x - Step 2: Convert to fraction form
170.93/254.91 = 154.53/x - Step 3: Cross multiply
170.93x = 254.91 × 154.53 - Step 4: Simplify right side
170.93x = 39,391.24 - Step 5: Solve for x
x = 39,391.24/170.93 - Step 6: Final answer
x = 230.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.