Finding the Fourth Proportional to 251,971.07, 347,720.10 and 138,793.82
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Solution
The fourth proportional to 251,971.07, 347,720.10 and 138,793.82 is: 191,535.48
Step by Step Solution
- Step 1: Write the proportion equation
251,971.07 : 347,720.10 = 138,793.82 : x - Step 2: Convert to fraction form
251,971.07/347,720.10 = 138,793.82/x - Step 3: Cross multiply
251,971.07x = 347,720.10 × 138,793.82 - Step 4: Simplify right side
251,971.07x = 48,261,400,969.78 - Step 5: Solve for x
x = 48,261,400,969.78/251,971.07 - Step 6: Final answer
x = 191,535.48
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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.