Finding the Fourth Proportional to 198,465.81, 273,881.48 and 107,821.14
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Solution
The fourth proportional to 198,465.81, 273,881.48 and 107,821.14 is: 148,792.45
Step by Step Solution
- Step 1: Write the proportion equation
198,465.81 : 273,881.48 = 107,821.14 : x - Step 2: Convert to fraction form
198,465.81/273,881.48 = 107,821.14/x - Step 3: Cross multiply
198,465.81x = 273,881.48 × 107,821.14 - Step 4: Simplify right side
198,465.81x = 29,530,213,398.49 - Step 5: Solve for x
x = 29,530,213,398.49/198,465.81 - Step 6: Final answer
x = 148,792.45
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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.