Finding the Fourth Proportional to 307,171.13, 423,861.11 and 178,082.68
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Solution
The fourth proportional to 307,171.13, 423,861.11 and 178,082.68 is: 245,733.78
Step by Step Solution
- Step 1: Write the proportion equation
307,171.13 : 423,861.11 = 178,082.68 : x - Step 2: Convert to fraction form
307,171.13/423,861.11 = 178,082.68/x - Step 3: Cross multiply
307,171.13x = 423,861.11 × 178,082.68 - Step 4: Simplify right side
307,171.13x = 75,482,320,466.51 - Step 5: Solve for x
x = 75,482,320,466.51/307,171.13 - Step 6: Final answer
x = 245,733.78
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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.