Finding the Fourth Proportional to 251,805.44, 347,493.84 and 138,630.08
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Solution
The fourth proportional to 251,805.44, 347,493.84 and 138,630.08 is: 191,310.79
Step by Step Solution
- Step 1: Write the proportion equation
251,805.44 : 347,493.84 = 138,630.08 : x - Step 2: Convert to fraction form
251,805.44/347,493.84 = 138,630.08/x - Step 3: Cross multiply
251,805.44x = 347,493.84 × 138,630.08 - Step 4: Simplify right side
251,805.44x = 48,173,098,838.71 - Step 5: Solve for x
x = 48,173,098,838.71/251,805.44 - Step 6: Final answer
x = 191,310.79
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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.