Finding the Fourth Proportional to 197,145.03, 272,059.86 and 112,262.09
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Solution
The fourth proportional to 197,145.03, 272,059.86 and 112,262.09 is: 154,921.52
Step by Step Solution
- Step 1: Write the proportion equation
197,145.03 : 272,059.86 = 112,262.09 : x - Step 2: Convert to fraction form
197,145.03/272,059.86 = 112,262.09/x - Step 3: Cross multiply
197,145.03x = 272,059.86 × 112,262.09 - Step 4: Simplify right side
197,145.03x = 30,542,007,128.41 - Step 5: Solve for x
x = 30,542,007,128.41/197,145.03 - Step 6: Final answer
x = 154,921.52
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1.5x scale
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.