Finding the Fourth Proportional to 342,718.62, 472,936.14 and 189,745.98
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Solution
The fourth proportional to 342,718.62, 472,936.14 and 189,745.98 is: 261,840.84
Step by Step Solution
- Step 1: Write the proportion equation
342,718.62 : 472,936.14 = 189,745.98 : x - Step 2: Convert to fraction form
342,718.62/472,936.14 = 189,745.98/x - Step 3: Cross multiply
342,718.62x = 472,936.14 × 189,745.98 - Step 4: Simplify right side
342,718.62x = 89,737,731,361.72 - Step 5: Solve for x
x = 89,737,731,361.72/342,718.62 - Step 6: Final answer
x = 261,840.84
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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.