Finding the Fourth Proportional to 198,102.67, 273,078.35 and 121,479.69
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Solution
The fourth proportional to 198,102.67, 273,078.35 and 121,479.69 is: 167,455.95
Step by Step Solution
- Step 1: Write the proportion equation
198,102.67 : 273,078.35 = 121,479.69 : x - Step 2: Convert to fraction form
198,102.67/273,078.35 = 121,479.69/x - Step 3: Cross multiply
198,102.67x = 273,078.35 × 121,479.69 - Step 4: Simplify right side
198,102.67x = 33,173,472,426.65 - Step 5: Solve for x
x = 33,173,472,426.65/198,102.67 - Step 6: Final answer
x = 167,455.95
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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.