Finding the Fourth Proportional to 379,902.20, 524,277.96 and 216,582.84
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Solution
The fourth proportional to 379,902.20, 524,277.96 and 216,582.84 is: 298,891.69
Step by Step Solution
- Step 1: Write the proportion equation
379,902.20 : 524,277.96 = 216,582.84 : x - Step 2: Convert to fraction form
379,902.20/524,277.96 = 216,582.84/x - Step 3: Cross multiply
379,902.20x = 524,277.96 × 216,582.84 - Step 4: Simplify right side
379,902.20x = 113,549,609,526.21 - Step 5: Solve for x
x = 113,549,609,526.21/379,902.20 - Step 6: Final answer
x = 298,891.69
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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.