Finding the Fourth Proportional to 198,914.79, 274,508.34 and 122,478.00
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Solution
The fourth proportional to 198,914.79, 274,508.34 and 122,478.00 is: 169,023.28
Step by Step Solution
- Step 1: Write the proportion equation
198,914.79 : 274,508.34 = 122,478.00 : x - Step 2: Convert to fraction form
198,914.79/274,508.34 = 122,478.00/x - Step 3: Cross multiply
198,914.79x = 274,508.34 × 122,478.00 - Step 4: Simplify right side
198,914.79x = 33,621,231,093.98 - Step 5: Solve for x
x = 33,621,231,093.98/198,914.79 - Step 6: Final answer
x = 169,023.28
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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.