Finding the Fourth Proportional to 189,389.44, 283,813.50 and 139,074.82
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Solution
The fourth proportional to 189,389.44, 283,813.50 and 139,074.82 is: 208,413.48
Step by Step Solution
- Step 1: Write the proportion equation
189,389.44 : 283,813.50 = 139,074.82 : x - Step 2: Convert to fraction form
189,389.44/283,813.50 = 139,074.82/x - Step 3: Cross multiply
189,389.44x = 283,813.50 × 139,074.82 - Step 4: Simplify right side
189,389.44x = 39,471,311,426.07 - Step 5: Solve for x
x = 39,471,311,426.07/189,389.44 - Step 6: Final answer
x = 208,413.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.