Finding the Fourth Proportional to 252,112.50, 347,937.12 and 138,957.12
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Solution
The fourth proportional to 252,112.50, 347,937.12 and 138,957.12 is: 191,772.88
Step by Step Solution
- Step 1: Write the proportion equation
252,112.50 : 347,937.12 = 138,957.12 : x - Step 2: Convert to fraction form
252,112.50/347,937.12 = 138,957.12/x - Step 3: Cross multiply
252,112.50x = 347,937.12 × 138,957.12 - Step 4: Simplify right side
252,112.50x = 48,348,340,136.29 - Step 5: Solve for x
x = 48,348,340,136.29/252,112.50 - Step 6: Final answer
x = 191,772.88
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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.