Finding the Fourth Proportional to 204,542.13, 306,940.98 and 78,193.07
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Solution
The fourth proportional to 204,542.13, 306,940.98 and 78,193.07 is: 117,338.45
Step by Step Solution
- Step 1: Write the proportion equation
204,542.13 : 306,940.98 = 78,193.07 : x - Step 2: Convert to fraction form
204,542.13/306,940.98 = 78,193.07/x - Step 3: Cross multiply
204,542.13x = 306,940.98 × 78,193.07 - Step 4: Simplify right side
204,542.13x = 24,000,656,000.30 - Step 5: Solve for x
x = 24,000,656,000.30/204,542.13 - Step 6: Final answer
x = 117,338.45
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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.