Finding the Fourth Proportional to 276,800.24, 381,992.28 and 155,942.84
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Solution
The fourth proportional to 276,800.24, 381,992.28 and 155,942.84 is: 215,205.60
Step by Step Solution
- Step 1: Write the proportion equation
276,800.24 : 381,992.28 = 155,942.84 : x - Step 2: Convert to fraction form
276,800.24/381,992.28 = 155,942.84/x - Step 3: Cross multiply
276,800.24x = 381,992.28 × 155,942.84 - Step 4: Simplify right side
276,800.24x = 59,568,961,001.28 - Step 5: Solve for x
x = 59,568,961,001.28/276,800.24 - Step 6: Final answer
x = 215,205.60
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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.