Finding the Fourth Proportional to 239,792.76, 331,033.77 and 149,178.15
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Solution
The fourth proportional to 239,792.76, 331,033.77 and 149,178.15 is: 205,940.35
Step by Step Solution
- Step 1: Write the proportion equation
239,792.76 : 331,033.77 = 149,178.15 : x - Step 2: Convert to fraction form
239,792.76/331,033.77 = 149,178.15/x - Step 3: Cross multiply
239,792.76x = 331,033.77 × 149,178.15 - Step 4: Simplify right side
239,792.76x = 49,383,005,396.13 - Step 5: Solve for x
x = 49,383,005,396.13/239,792.76 - Step 6: Final answer
x = 205,940.35
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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.