Finding the Fourth Proportional to 198,139.97, 273,463.17 and 126,567.66
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Solution
The fourth proportional to 198,139.97, 273,463.17 and 126,567.66 is: 174,682.55
Step by Step Solution
- Step 1: Write the proportion equation
198,139.97 : 273,463.17 = 126,567.66 : x - Step 2: Convert to fraction form
198,139.97/273,463.17 = 126,567.66/x - Step 3: Cross multiply
198,139.97x = 273,463.17 × 126,567.66 - Step 4: Simplify right side
198,139.97x = 34,611,593,523.08 - Step 5: Solve for x
x = 34,611,593,523.08/198,139.97 - Step 6: Final answer
x = 174,682.55
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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.