Finding the Fourth Proportional to 198,246.12, 273,664.89 and 121,777.68
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Solution
The fourth proportional to 198,246.12, 273,664.89 and 121,777.68 is: 168,105.56
Step by Step Solution
- Step 1: Write the proportion equation
198,246.12 : 273,664.89 = 121,777.68 : x - Step 2: Convert to fraction form
198,246.12/273,664.89 = 121,777.68/x - Step 3: Cross multiply
198,246.12x = 273,664.89 × 121,777.68 - Step 4: Simplify right side
198,246.12x = 33,326,275,401.66 - Step 5: Solve for x
x = 33,326,275,401.66/198,246.12 - Step 6: Final answer
x = 168,105.56
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1.5x scale
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.