Finding the Fourth Proportional to 251,664.30, 347,296.50 and 138,487.05
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Solution
The fourth proportional to 251,664.30, 347,296.50 and 138,487.05 is: 191,112.00
Step by Step Solution
- Step 1: Write the proportion equation
251,664.30 : 347,296.50 = 138,487.05 : x - Step 2: Convert to fraction form
251,664.30/347,296.50 = 138,487.05/x - Step 3: Cross multiply
251,664.30x = 347,296.50 × 138,487.05 - Step 4: Simplify right side
251,664.30x = 48,096,067,760.33 - Step 5: Solve for x
x = 48,096,067,760.33/251,664.30 - Step 6: Final answer
x = 191,112.00
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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.