Finding the Fourth Proportional to 198,188.12, 273,584.94 and 121,719.62
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Solution
The fourth proportional to 198,188.12, 273,584.94 and 121,719.62 is: 168,025.48
Step by Step Solution
- Step 1: Write the proportion equation
198,188.12 : 273,584.94 = 121,719.62 : x - Step 2: Convert to fraction form
198,188.12/273,584.94 = 121,719.62/x - Step 3: Cross multiply
198,188.12x = 273,584.94 × 121,719.62 - Step 4: Simplify right side
198,188.12x = 33,300,654,934.52 - Step 5: Solve for x
x = 33,300,654,934.52/198,188.12 - Step 6: Final answer
x = 168,025.48
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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.