Finding the Fourth Proportional to 251,783.12, 347,447.88 and 138,584.08
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Solution
The fourth proportional to 251,783.12, 347,447.88 and 138,584.08 is: 191,238.97
Step by Step Solution
- Step 1: Write the proportion equation
251,783.12 : 347,447.88 = 138,584.08 : x - Step 2: Convert to fraction form
251,783.12/347,447.88 = 138,584.08/x - Step 3: Cross multiply
251,783.12x = 347,447.88 × 138,584.08 - Step 4: Simplify right side
251,783.12x = 48,150,744,797.75 - Step 5: Solve for x
x = 48,150,744,797.75/251,783.12 - Step 6: Final answer
x = 191,238.97
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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.