Finding the Fourth Proportional to 198,674.79, 274,058.99 and 118,128.29
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Solution
The fourth proportional to 198,674.79, 274,058.99 and 118,128.29 is: 162,950.32
Step by Step Solution
- Step 1: Write the proportion equation
198,674.79 : 274,058.99 = 118,128.29 : x - Step 2: Convert to fraction form
198,674.79/274,058.99 = 118,128.29/x - Step 3: Cross multiply
198,674.79x = 274,058.99 × 118,128.29 - Step 4: Simplify right side
198,674.79x = 32,374,120,535.93 - Step 5: Solve for x
x = 32,374,120,535.93/198,674.79 - Step 6: Final answer
x = 162,950.32
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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.