Finding the Fourth Proportional to 234,936.45, 324,213.49 and 138,134.82
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Solution
The fourth proportional to 234,936.45, 324,213.49 and 138,134.82 is: 190,626.75
Step by Step Solution
- Step 1: Write the proportion equation
234,936.45 : 324,213.49 = 138,134.82 : x - Step 2: Convert to fraction form
234,936.45/324,213.49 = 138,134.82/x - Step 3: Cross multiply
234,936.45x = 324,213.49 × 138,134.82 - Step 4: Simplify right side
234,936.45x = 44,785,170,870.48 - Step 5: Solve for x
x = 44,785,170,870.48/234,936.45 - Step 6: Final answer
x = 190,626.75
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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.