Finding the Fourth Proportional to 354,517.20, 531,775.80 and 242,542.80
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Solution
The fourth proportional to 354,517.20, 531,775.80 and 242,542.80 is: 363,814.20
Step by Step Solution
- Step 1: Write the proportion equation
354,517.20 : 531,775.80 = 242,542.80 : x - Step 2: Convert to fraction form
354,517.20/531,775.80 = 242,542.80/x - Step 3: Cross multiply
354,517.20x = 531,775.80 × 242,542.80 - Step 4: Simplify right side
354,517.20x = 128,978,391,504.24 - Step 5: Solve for x
x = 128,978,391,504.24/354,517.20 - Step 6: Final answer
x = 363,814.20
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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.