Finding the Fourth Proportional to 197,764.70, 272,964.12 and 112,930.97
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Solution
The fourth proportional to 197,764.70, 272,964.12 and 112,930.97 is: 155,872.63
Step by Step Solution
- Step 1: Write the proportion equation
197,764.70 : 272,964.12 = 112,930.97 : x - Step 2: Convert to fraction form
197,764.70/272,964.12 = 112,930.97/x - Step 3: Cross multiply
197,764.70x = 272,964.12 × 112,930.97 - Step 4: Simplify right side
197,764.70x = 30,826,103,529.21 - Step 5: Solve for x
x = 30,826,103,529.21/197,764.70 - Step 6: Final answer
x = 155,872.63
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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.