Finding the Fourth Proportional to 251,905.75, 347,628.41 and 138,727.69
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Solution
The fourth proportional to 251,905.75, 347,628.41 and 138,727.69 is: 191,443.37
Step by Step Solution
- Step 1: Write the proportion equation
251,905.75 : 347,628.41 = 138,727.69 : x - Step 2: Convert to fraction form
251,905.75/347,628.41 = 138,727.69/x - Step 3: Cross multiply
251,905.75x = 347,628.41 × 138,727.69 - Step 4: Simplify right side
251,905.75x = 48,225,685,255.19 - Step 5: Solve for x
x = 48,225,685,255.19/251,905.75 - Step 6: Final answer
x = 191,443.37
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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.