Finding the Fourth Proportional to 188,474.49, 260,155.41 and 120,674.07
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Solution
The fourth proportional to 188,474.49, 260,155.41 and 120,674.07 is: 166,569.03
Step by Step Solution
- Step 1: Write the proportion equation
188,474.49 : 260,155.41 = 120,674.07 : x - Step 2: Convert to fraction form
188,474.49/260,155.41 = 120,674.07/x - Step 3: Cross multiply
188,474.49x = 260,155.41 × 120,674.07 - Step 4: Simplify right side
188,474.49x = 31,394,012,157.22 - Step 5: Solve for x
x = 31,394,012,157.22/188,474.49 - Step 6: Final answer
x = 166,569.03
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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.