Finding the Fourth Proportional to 259,692.14, 389,518.74 and 91,213.94
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Solution
The fourth proportional to 259,692.14, 389,518.74 and 91,213.94 is: 136,814.07
Step by Step Solution
- Step 1: Write the proportion equation
259,692.14 : 389,518.74 = 91,213.94 : x - Step 2: Convert to fraction form
259,692.14/389,518.74 = 91,213.94/x - Step 3: Cross multiply
259,692.14x = 389,518.74 × 91,213.94 - Step 4: Simplify right side
259,692.14x = 35,529,538,979.24 - Step 5: Solve for x
x = 35,529,538,979.24/259,692.14 - Step 6: Final answer
x = 136,814.07
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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.