Finding the Fourth Proportional to 399,542.20, 599,313.30 and 162,755.80
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Solution
The fourth proportional to 399,542.20, 599,313.30 and 162,755.80 is: 244,133.70
Step by Step Solution
- Step 1: Write the proportion equation
399,542.20 : 599,313.30 = 162,755.80 : x - Step 2: Convert to fraction form
399,542.20/599,313.30 = 162,755.80/x - Step 3: Cross multiply
399,542.20x = 599,313.30 × 162,755.80 - Step 4: Simplify right side
399,542.20x = 97,541,715,592.14 - Step 5: Solve for x
x = 97,541,715,592.14/399,542.20 - Step 6: Final answer
x = 244,133.70
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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.