Finding the Fourth Proportional to 251,830.82, 347,528.87 and 138,657.62
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Solution
The fourth proportional to 251,830.82, 347,528.87 and 138,657.62 is: 191,348.80
Step by Step Solution
- Step 1: Write the proportion equation
251,830.82 : 347,528.87 = 138,657.62 : x - Step 2: Convert to fraction form
251,830.82/347,528.87 = 138,657.62/x - Step 3: Cross multiply
251,830.82x = 347,528.87 × 138,657.62 - Step 4: Simplify right side
251,830.82x = 48,187,523,564.56 - Step 5: Solve for x
x = 48,187,523,564.56/251,830.82 - Step 6: Final answer
x = 191,348.80
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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.