Finding the Fourth Proportional to 198,336.34, 273,752.76 and 121,873.96
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Solution
The fourth proportional to 198,336.34, 273,752.76 and 121,873.96 is: 168,215.94
Step by Step Solution
- Step 1: Write the proportion equation
198,336.34 : 273,752.76 = 121,873.96 : x - Step 2: Convert to fraction form
198,336.34/273,752.76 = 121,873.96/x - Step 3: Cross multiply
198,336.34x = 273,752.76 × 121,873.96 - Step 4: Simplify right side
198,336.34x = 33,363,332,922.13 - Step 5: Solve for x
x = 33,363,332,922.13/198,336.34 - Step 6: Final answer
x = 168,215.94
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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.