Finding the Fourth Proportional to 197,782.36, 272,939.97 and 117,249.46
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Solution
The fourth proportional to 197,782.36, 272,939.97 and 117,249.46 is: 161,804.44
Step by Step Solution
- Step 1: Write the proportion equation
197,782.36 : 272,939.97 = 117,249.46 : x - Step 2: Convert to fraction form
197,782.36/272,939.97 = 117,249.46/x - Step 3: Cross multiply
197,782.36x = 272,939.97 × 117,249.46 - Step 4: Simplify right side
197,782.36x = 32,002,064,094.92 - Step 5: Solve for x
x = 32,002,064,094.92/197,782.36 - Step 6: Final answer
x = 161,804.44
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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.