Finding the Fourth Proportional to 252,137.10, 378,284.94 and 74,645.68
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Solution
The fourth proportional to 252,137.10, 378,284.94 and 74,645.68 is: 111,991.99
Step by Step Solution
- Step 1: Write the proportion equation
252,137.10 : 378,284.94 = 74,645.68 : x - Step 2: Convert to fraction form
252,137.10/378,284.94 = 74,645.68/x - Step 3: Cross multiply
252,137.10x = 378,284.94 × 74,645.68 - Step 4: Simplify right side
252,137.10x = 28,237,336,580.06 - Step 5: Solve for x
x = 28,237,336,580.06/252,137.10 - Step 6: Final answer
x = 111,991.99
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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.