Finding the Fourth Proportional to 276,143.26, 381,079.92 and 153,637.44
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Solution
The fourth proportional to 276,143.26, 381,079.92 and 153,637.44 is: 212,020.90
Step by Step Solution
- Step 1: Write the proportion equation
276,143.26 : 381,079.92 = 153,637.44 : x - Step 2: Convert to fraction form
276,143.26/381,079.92 = 153,637.44/x - Step 3: Cross multiply
276,143.26x = 381,079.92 × 153,637.44 - Step 4: Simplify right side
276,143.26x = 58,548,143,344.20 - Step 5: Solve for x
x = 58,548,143,344.20/276,143.26 - Step 6: Final answer
x = 212,020.90
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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.