Finding the Fourth Proportional to 231,397.20, 347,122.80 and 73,641.60
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Solution
The fourth proportional to 231,397.20, 347,122.80 and 73,641.60 is: 110,470.99
Step by Step Solution
- Step 1: Write the proportion equation
231,397.20 : 347,122.80 = 73,641.60 : x - Step 2: Convert to fraction form
231,397.20/347,122.80 = 73,641.60/x - Step 3: Cross multiply
231,397.20x = 347,122.80 × 73,641.60 - Step 4: Simplify right side
231,397.20x = 25,562,678,388.48 - Step 5: Solve for x
x = 25,562,678,388.48/231,397.20 - Step 6: Final answer
x = 110,470.99
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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.