Finding the Fourth Proportional to 276,794.22, 381,977.19 and 155,936.96
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Solution
The fourth proportional to 276,794.22, 381,977.19 and 155,936.96 is: 215,193.66
Step by Step Solution
- Step 1: Write the proportion equation
276,794.22 : 381,977.19 = 155,936.96 : x - Step 2: Convert to fraction form
276,794.22/381,977.19 = 155,936.96/x - Step 3: Cross multiply
276,794.22x = 381,977.19 × 155,936.96 - Step 4: Simplify right side
276,794.22x = 59,564,359,888.06 - Step 5: Solve for x
x = 59,564,359,888.06/276,794.22 - Step 6: Final answer
x = 215,193.66
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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.