Finding the Fourth Proportional to 200,065.64, 276,080.35 and 109,403.99
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Solution
The fourth proportional to 200,065.64, 276,080.35 and 109,403.99 is: 150,971.90
Step by Step Solution
- Step 1: Write the proportion equation
200,065.64 : 276,080.35 = 109,403.99 : x - Step 2: Convert to fraction form
200,065.64/276,080.35 = 109,403.99/x - Step 3: Cross multiply
200,065.64x = 276,080.35 × 109,403.99 - Step 4: Simplify right side
200,065.64x = 30,204,289,923.17 - Step 5: Solve for x
x = 30,204,289,923.17/200,065.64 - Step 6: Final answer
x = 150,971.90
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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.