Finding the Fourth Proportional to 268.87, 371.09 and 170.63
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Solution
The fourth proportional to 268.87, 371.09 and 170.63 is: 235.50
Step by Step Solution
- Step 1: Write the proportion equation
268.87 : 371.09 = 170.63 : x - Step 2: Convert to fraction form
268.87/371.09 = 170.63/x - Step 3: Cross multiply
268.87x = 371.09 × 170.63 - Step 4: Simplify right side
268.87x = 63,318.23 - Step 5: Solve for x
x = 63,318.23/268.87 - Step 6: Final answer
x = 235.50
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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.