Finding the Fourth Proportional to 256,538.70, 353,793.42 and 213,660.54
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Solution
The fourth proportional to 256,538.70, 353,793.42 and 213,660.54 is: 294,660.00
Step by Step Solution
- Step 1: Write the proportion equation
256,538.70 : 353,793.42 = 213,660.54 : x - Step 2: Convert to fraction form
256,538.70/353,793.42 = 213,660.54/x - Step 3: Cross multiply
256,538.70x = 353,793.42 × 213,660.54 - Step 4: Simplify right side
256,538.70x = 75,591,693,165.65 - Step 5: Solve for x
x = 75,591,693,165.65/256,538.70 - Step 6: Final answer
x = 294,660.00
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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.