Finding the Fourth Proportional to 276,791.22, 381,973.05 and 155,933.96
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Solution
The fourth proportional to 276,791.22, 381,973.05 and 155,933.96 is: 215,189.52
Step by Step Solution
- Step 1: Write the proportion equation
276,791.22 : 381,973.05 = 155,933.96 : x - Step 2: Convert to fraction form
276,791.22/381,973.05 = 155,933.96/x - Step 3: Cross multiply
276,791.22x = 381,973.05 × 155,933.96 - Step 4: Simplify right side
276,791.22x = 59,562,568,389.91 - Step 5: Solve for x
x = 59,562,568,389.91/276,791.22 - Step 6: Final answer
x = 215,189.52
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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.