Finding the Fourth Proportional to 198,998.79, 274,529.61 and 134,447.28
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Solution
The fourth proportional to 198,998.79, 274,529.61 and 134,447.28 is: 185,477.31
Step by Step Solution
- Step 1: Write the proportion equation
198,998.79 : 274,529.61 = 134,447.28 : x - Step 2: Convert to fraction form
198,998.79/274,529.61 = 134,447.28/x - Step 3: Cross multiply
198,998.79x = 274,529.61 × 134,447.28 - Step 4: Simplify right side
198,998.79x = 36,909,759,343.96 - Step 5: Solve for x
x = 36,909,759,343.96/198,998.79 - Step 6: Final answer
x = 185,477.31
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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.