Finding the Fourth Proportional to 170.61, 235.45 and 92.99
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Solution
The fourth proportional to 170.61, 235.45 and 92.99 is: 128.32
Step by Step Solution
- Step 1: Write the proportion equation
170.61 : 235.45 = 92.99 : x - Step 2: Convert to fraction form
170.61/235.45 = 92.99/x - Step 3: Cross multiply
170.61x = 235.45 × 92.99 - Step 4: Simplify right side
170.61x = 21,892.85 - Step 5: Solve for x
x = 21,892.85/170.61 - Step 6: Final answer
x = 128.32
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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.