Finding the Fourth Proportional to 189,072.12, 283,608.18 and 129,727.88
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Solution
The fourth proportional to 189,072.12, 283,608.18 and 129,727.88 is: 194,591.81
Step by Step Solution
- Step 1: Write the proportion equation
189,072.12 : 283,608.18 = 129,727.88 : x - Step 2: Convert to fraction form
189,072.12/283,608.18 = 129,727.88/x - Step 3: Cross multiply
189,072.12x = 283,608.18 × 129,727.88 - Step 4: Simplify right side
189,072.12x = 36,791,885,875.38 - Step 5: Solve for x
x = 36,791,885,875.38/189,072.12 - Step 6: Final answer
x = 194,591.81
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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.