Finding the Fourth Proportional to 251,909.73, 347,635.80 and 137,188.62
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Solution
The fourth proportional to 251,909.73, 347,635.80 and 137,188.62 is: 189,320.50
Step by Step Solution
- Step 1: Write the proportion equation
251,909.73 : 347,635.80 = 137,188.62 : x - Step 2: Convert to fraction form
251,909.73/347,635.80 = 137,188.62/x - Step 3: Cross multiply
251,909.73x = 347,635.80 × 137,188.62 - Step 4: Simplify right side
251,909.73x = 47,691,675,664.60 - Step 5: Solve for x
x = 47,691,675,664.60/251,909.73 - Step 6: Final answer
x = 189,320.50
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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.