Finding the Fourth Proportional to 200,133.24, 276,217.74 and 115,234.68
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Solution
The fourth proportional to 200,133.24, 276,217.74 and 115,234.68 is: 159,043.36
Step by Step Solution
- Step 1: Write the proportion equation
200,133.24 : 276,217.74 = 115,234.68 : x - Step 2: Convert to fraction form
200,133.24/276,217.74 = 115,234.68/x - Step 3: Cross multiply
200,133.24x = 276,217.74 × 115,234.68 - Step 4: Simplify right side
200,133.24x = 31,829,862,879.22 - Step 5: Solve for x
x = 31,829,862,879.22/200,133.24 - Step 6: Final answer
x = 159,043.36
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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.