Finding the Fourth Proportional to 259,453.49, 389,147.99 and 69,928.67
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Solution
The fourth proportional to 259,453.49, 389,147.99 and 69,928.67 is: 104,884.32
Step by Step Solution
- Step 1: Write the proportion equation
259,453.49 : 389,147.99 = 69,928.67 : x - Step 2: Convert to fraction form
259,453.49/389,147.99 = 69,928.67/x - Step 3: Cross multiply
259,453.49x = 389,147.99 × 69,928.67 - Step 4: Simplify right side
259,453.49x = 27,212,601,997.10 - Step 5: Solve for x
x = 27,212,601,997.10/259,453.49 - Step 6: Final answer
x = 104,884.32
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1.5x scale
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.