Finding the Fourth Proportional to 185, 255.36 and 116
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Solution
The fourth proportional to 185, 255.36 and 116 is: 160.12
Step by Step Solution
- Step 1: Write the proportion equation
185 : 255.36 = 116 : x - Step 2: Convert to fraction form
185/255.36 = 116/x - Step 3: Cross multiply
185x = 255.36 × 116 - Step 4: Simplify right side
185x = 29,621.76 - Step 5: Solve for x
x = 29,621.76/185 - Step 6: Final answer
x = 160.12
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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.