Finding the Fourth Proportional to 256,610.79, 354,107.68 and 141,880.43
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Solution
The fourth proportional to 256,610.79, 354,107.68 and 141,880.43 is: 195,786.58
Step by Step Solution
- Step 1: Write the proportion equation
256,610.79 : 354,107.68 = 141,880.43 : x - Step 2: Convert to fraction form
256,610.79/354,107.68 = 141,880.43/x - Step 3: Cross multiply
256,610.79x = 354,107.68 × 141,880.43 - Step 4: Simplify right side
256,610.79x = 50,240,949,240.24 - Step 5: Solve for x
x = 50,240,949,240.24/256,610.79 - Step 6: Final answer
x = 195,786.58
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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.