Finding the Fourth Proportional to 310,293.99, 428,059.22 and 265,453.67
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Solution
The fourth proportional to 310,293.99, 428,059.22 and 265,453.67 is: 366,200.75
Step by Step Solution
- Step 1: Write the proportion equation
310,293.99 : 428,059.22 = 265,453.67 : x - Step 2: Convert to fraction form
310,293.99/428,059.22 = 265,453.67/x - Step 3: Cross multiply
310,293.99x = 428,059.22 × 265,453.67 - Step 4: Simplify right side
310,293.99x = 113,629,890,669.22 - Step 5: Solve for x
x = 113,629,890,669.22/310,293.99 - Step 6: Final answer
x = 366,200.75
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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.