Finding the Fourth Proportional to 197,489.70, 272,542.79 and 111,469.62
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Solution
The fourth proportional to 197,489.70, 272,542.79 and 111,469.62 is: 153,832.02
Step by Step Solution
- Step 1: Write the proportion equation
197,489.70 : 272,542.79 = 111,469.62 : x - Step 2: Convert to fraction form
197,489.70/272,542.79 = 111,469.62/x - Step 3: Cross multiply
197,489.70x = 272,542.79 × 111,469.62 - Step 4: Simplify right side
197,489.70x = 30,380,239,314.98 - Step 5: Solve for x
x = 30,380,239,314.98/197,489.70 - Step 6: Final answer
x = 153,832.02
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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.