Finding the Fourth Proportional to 234,438.44, 323,518.30 and 137,640.68
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Solution
The fourth proportional to 234,438.44, 323,518.30 and 137,640.68 is: 189,940.18
Step by Step Solution
- Step 1: Write the proportion equation
234,438.44 : 323,518.30 = 137,640.68 : x - Step 2: Convert to fraction form
234,438.44/323,518.30 = 137,640.68/x - Step 3: Cross multiply
234,438.44x = 323,518.30 × 137,640.68 - Step 4: Simplify right side
234,438.44x = 44,529,278,804.44 - Step 5: Solve for x
x = 44,529,278,804.44/234,438.44 - Step 6: Final answer
x = 189,940.18
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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.