Finding the Fourth Proportional to 198,067.68, 273,332.61 and 107,423.28
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Solution
The fourth proportional to 198,067.68, 273,332.61 and 107,423.28 is: 148,243.70
Step by Step Solution
- Step 1: Write the proportion equation
198,067.68 : 273,332.61 = 107,423.28 : x - Step 2: Convert to fraction form
198,067.68/273,332.61 = 107,423.28/x - Step 3: Cross multiply
198,067.68x = 273,332.61 × 107,423.28 - Step 4: Simplify right side
198,067.68x = 29,362,285,497.16 - Step 5: Solve for x
x = 29,362,285,497.16/198,067.68 - Step 6: Final answer
x = 148,243.70
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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.