Finding the Fourth Proportional to 454,540.52, 681,745.12 and 138,912.68
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Solution
The fourth proportional to 454,540.52, 681,745.12 and 138,912.68 is: 208,348.95
Step by Step Solution
- Step 1: Write the proportion equation
454,540.52 : 681,745.12 = 138,912.68 : x - Step 2: Convert to fraction form
454,540.52/681,745.12 = 138,912.68/x - Step 3: Cross multiply
454,540.52x = 681,745.12 × 138,912.68 - Step 4: Simplify right side
454,540.52x = 94,703,041,696.12 - Step 5: Solve for x
x = 94,703,041,696.12/454,540.52 - Step 6: Final answer
x = 208,348.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.