Finding the Fourth Proportional to 199,446.97, 275,212.11 and 121,961.56
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Solution
The fourth proportional to 199,446.97, 275,212.11 and 121,961.56 is: 168,291.84
Step by Step Solution
- Step 1: Write the proportion equation
199,446.97 : 275,212.11 = 121,961.56 : x - Step 2: Convert to fraction form
199,446.97/275,212.11 = 121,961.56/x - Step 3: Cross multiply
199,446.97x = 275,212.11 × 121,961.56 - Step 4: Simplify right side
199,446.97x = 33,565,298,266.49 - Step 5: Solve for x
x = 33,565,298,266.49/199,446.97 - Step 6: Final answer
x = 168,291.84
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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.