Finding the Fourth Proportional to 213,043.99, 319,677.77 and 80,016.07
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Solution
The fourth proportional to 213,043.99, 319,677.77 and 80,016.07 is: 120,066.09
Step by Step Solution
- Step 1: Write the proportion equation
213,043.99 : 319,677.77 = 80,016.07 : x - Step 2: Convert to fraction form
213,043.99/319,677.77 = 80,016.07/x - Step 3: Cross multiply
213,043.99x = 319,677.77 × 80,016.07 - Step 4: Simplify right side
213,043.99x = 25,579,358,821.76 - Step 5: Solve for x
x = 25,579,358,821.76/213,043.99 - Step 6: Final answer
x = 120,066.09
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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.