Finding the Fourth Proportional to 256,419.18, 353,879.10 and 141,707.88
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Solution
The fourth proportional to 256,419.18, 353,879.10 and 141,707.88 is: 195,568.28
Step by Step Solution
- Step 1: Write the proportion equation
256,419.18 : 353,879.10 = 141,707.88 : x - Step 2: Convert to fraction form
256,419.18/353,879.10 = 141,707.88/x - Step 3: Cross multiply
256,419.18x = 353,879.10 × 141,707.88 - Step 4: Simplify right side
256,419.18x = 50,147,457,037.31 - Step 5: Solve for x
x = 50,147,457,037.31/256,419.18 - Step 6: Final answer
x = 195,568.28
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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.