Finding the Fourth Proportional to 197,687.44, 272,828.20 and 112,817.26
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Solution
The fourth proportional to 197,687.44, 272,828.20 and 112,817.26 is: 155,698.96
Step by Step Solution
- Step 1: Write the proportion equation
197,687.44 : 272,828.20 = 112,817.26 : x - Step 2: Convert to fraction form
197,687.44/272,828.20 = 112,817.26/x - Step 3: Cross multiply
197,687.44x = 272,828.20 × 112,817.26 - Step 4: Simplify right side
197,687.44x = 30,779,728,610.59 - Step 5: Solve for x
x = 30,779,728,610.59/197,687.44 - Step 6: Final answer
x = 155,698.96
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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.