Finding the Fourth Proportional to 256,812.44, 354,399.24 and 143,635.19
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Solution
The fourth proportional to 256,812.44, 354,399.24 and 143,635.19 is: 198,215.48
Step by Step Solution
- Step 1: Write the proportion equation
256,812.44 : 354,399.24 = 143,635.19 : x - Step 2: Convert to fraction form
256,812.44/354,399.24 = 143,635.19/x - Step 3: Cross multiply
256,812.44x = 354,399.24 × 143,635.19 - Step 4: Simplify right side
256,812.44x = 50,904,202,173.26 - Step 5: Solve for x
x = 50,904,202,173.26/256,812.44 - Step 6: Final answer
x = 198,215.48
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1.5x scale
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.