Finding the Fourth Proportional to 252,429.13, 378,640.79 and 72,518.99
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Solution
The fourth proportional to 252,429.13, 378,640.79 and 72,518.99 is: 108,777.65
Step by Step Solution
- Step 1: Write the proportion equation
252,429.13 : 378,640.79 = 72,518.99 : x - Step 2: Convert to fraction form
252,429.13/378,640.79 = 72,518.99/x - Step 3: Cross multiply
252,429.13x = 378,640.79 × 72,518.99 - Step 4: Simplify right side
252,429.13x = 27,458,647,301.01 - Step 5: Solve for x
x = 27,458,647,301.01/252,429.13 - Step 6: Final answer
x = 108,777.65
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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.