Finding the Fourth Proportional to 202,230.75, 279,078.44 and 112,806.75
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Solution
The fourth proportional to 202,230.75, 279,078.44 and 112,806.75 is: 155,673.32
Step by Step Solution
- Step 1: Write the proportion equation
202,230.75 : 279,078.44 = 112,806.75 : x - Step 2: Convert to fraction form
202,230.75/279,078.44 = 112,806.75/x - Step 3: Cross multiply
202,230.75x = 279,078.44 × 112,806.75 - Step 4: Simplify right side
202,230.75x = 31,481,931,811.47 - Step 5: Solve for x
x = 31,481,931,811.47/202,230.75 - Step 6: Final answer
x = 155,673.32
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1.5x scale
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.