Finding the Fourth Proportional to 276,163.92, 381,102.58 and 155,305.17
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Solution
The fourth proportional to 276,163.92, 381,102.58 and 155,305.17 is: 214,319.09
Step by Step Solution
- Step 1: Write the proportion equation
276,163.92 : 381,102.58 = 155,305.17 : x - Step 2: Convert to fraction form
276,163.92/381,102.58 = 155,305.17/x - Step 3: Cross multiply
276,163.92x = 381,102.58 × 155,305.17 - Step 4: Simplify right side
276,163.92x = 59,187,200,974.34 - Step 5: Solve for x
x = 59,187,200,974.34/276,163.92 - Step 6: Final answer
x = 214,319.09
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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.