Finding the Fourth Proportional to 178,994.09, 247,049.43 and 113,540.58
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Solution
The fourth proportional to 178,994.09, 247,049.43 and 113,540.58 is: 156,709.84
Step by Step Solution
- Step 1: Write the proportion equation
178,994.09 : 247,049.43 = 113,540.58 : x - Step 2: Convert to fraction form
178,994.09/247,049.43 = 113,540.58/x - Step 3: Cross multiply
178,994.09x = 247,049.43 × 113,540.58 - Step 4: Simplify right side
178,994.09x = 28,050,135,570.87 - Step 5: Solve for x
x = 28,050,135,570.87/178,994.09 - Step 6: Final answer
x = 156,709.84
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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.