Finding the Fourth Proportional to 197,044.13, 271,921.21 and 112,161.20
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Solution
The fourth proportional to 197,044.13, 271,921.21 and 112,161.20 is: 154,782.63
Step by Step Solution
- Step 1: Write the proportion equation
197,044.13 : 271,921.21 = 112,161.20 : x - Step 2: Convert to fraction form
197,044.13/271,921.21 = 112,161.20/x - Step 3: Cross multiply
197,044.13x = 271,921.21 × 112,161.20 - Step 4: Simplify right side
197,044.13x = 30,499,007,579.04 - Step 5: Solve for x
x = 30,499,007,579.04/197,044.13 - Step 6: Final answer
x = 154,782.63
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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.