Finding the Fourth Proportional to 216,350.13, 298,561.77 and 120,855.99
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Solution
The fourth proportional to 216,350.13, 298,561.77 and 120,855.99 is: 166,780.48
Step by Step Solution
- Step 1: Write the proportion equation
216,350.13 : 298,561.77 = 120,855.99 : x - Step 2: Convert to fraction form
216,350.13/298,561.77 = 120,855.99/x - Step 3: Cross multiply
216,350.13x = 298,561.77 × 120,855.99 - Step 4: Simplify right side
216,350.13x = 36,082,978,289.50 - Step 5: Solve for x
x = 36,082,978,289.50/216,350.13 - Step 6: Final answer
x = 166,780.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.