Finding the Fourth Proportional to 178,912.20, 268,400.70 and 89,941.80
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Solution
The fourth proportional to 178,912.20, 268,400.70 and 89,941.80 is: 134,928.99
Step by Step Solution
- Step 1: Write the proportion equation
178,912.20 : 268,400.70 = 89,941.80 : x - Step 2: Convert to fraction form
178,912.20/268,400.70 = 89,941.80/x - Step 3: Cross multiply
178,912.20x = 268,400.70 × 89,941.80 - Step 4: Simplify right side
178,912.20x = 24,140,442,079.26 - Step 5: Solve for x
x = 24,140,442,079.26/178,912.20 - Step 6: Final answer
x = 134,928.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.