Finding the Fourth Proportional to 198,369.36, 273,744.36 and 107,721.18
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Solution
The fourth proportional to 198,369.36, 273,744.36 and 107,721.18 is: 148,652.32
Step by Step Solution
- Step 1: Write the proportion equation
198,369.36 : 273,744.36 = 107,721.18 : x - Step 2: Convert to fraction form
198,369.36/273,744.36 = 107,721.18/x - Step 3: Cross multiply
198,369.36x = 273,744.36 × 107,721.18 - Step 4: Simplify right side
198,369.36x = 29,488,065,477.54 - Step 5: Solve for x
x = 29,488,065,477.54/198,369.36 - Step 6: Final answer
x = 148,652.32
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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.