Finding the Fourth Proportional to 231,394.80, 347,092.20 and 73,639.20
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Solution
The fourth proportional to 231,394.80, 347,092.20 and 73,639.20 is: 110,458.80
Step by Step Solution
- Step 1: Write the proportion equation
231,394.80 : 347,092.20 = 73,639.20 : x - Step 2: Convert to fraction form
231,394.80/347,092.20 = 73,639.20/x - Step 3: Cross multiply
231,394.80x = 347,092.20 × 73,639.20 - Step 4: Simplify right side
231,394.80x = 25,559,591,934.24 - Step 5: Solve for x
x = 25,559,591,934.24/231,394.80 - Step 6: Final answer
x = 110,458.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.