Finding the Fourth Proportional to 173,977.12, 240,571.74 and 138,104.92
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Solution
The fourth proportional to 173,977.12, 240,571.74 and 138,104.92 is: 190,968.45
Step by Step Solution
- Step 1: Write the proportion equation
173,977.12 : 240,571.74 = 138,104.92 : x - Step 2: Convert to fraction form
173,977.12/240,571.74 = 138,104.92/x - Step 3: Cross multiply
173,977.12x = 240,571.74 × 138,104.92 - Step 4: Simplify right side
173,977.12x = 33,224,140,906.96 - Step 5: Solve for x
x = 33,224,140,906.96/173,977.12 - Step 6: Final answer
x = 190,968.45
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1.5x scale
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.