Finding the Fourth Proportional to 247.38, 341.42 and 159.99
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Solution
The fourth proportional to 247.38, 341.42 and 159.99 is: 220.81
Step by Step Solution
- Step 1: Write the proportion equation
247.38 : 341.42 = 159.99 : x - Step 2: Convert to fraction form
247.38/341.42 = 159.99/x - Step 3: Cross multiply
247.38x = 341.42 × 159.99 - Step 4: Simplify right side
247.38x = 54,622.99 - Step 5: Solve for x
x = 54,622.99/247.38 - Step 6: Final answer
x = 220.81
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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.