Finding the Fourth Proportional to 198,430.14, 273,838.54 and 107,786.08
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Solution
The fourth proportional to 198,430.14, 273,838.54 and 107,786.08 is: 148,747.48
Step by Step Solution
- Step 1: Write the proportion equation
198,430.14 : 273,838.54 = 107,786.08 : x - Step 2: Convert to fraction form
198,430.14/273,838.54 = 107,786.08/x - Step 3: Cross multiply
198,430.14x = 273,838.54 × 107,786.08 - Step 4: Simplify right side
198,430.14x = 29,515,982,779.52 - Step 5: Solve for x
x = 29,515,982,779.52/198,430.14 - Step 6: Final answer
x = 148,747.48
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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.