Finding the Fourth Proportional to 311,997.18, 430,519.05 and 176,023.19
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Solution
The fourth proportional to 311,997.18, 430,519.05 and 176,023.19 is: 242,891.10
Step by Step Solution
- Step 1: Write the proportion equation
311,997.18 : 430,519.05 = 176,023.19 : x - Step 2: Convert to fraction form
311,997.18/430,519.05 = 176,023.19/x - Step 3: Cross multiply
311,997.18x = 430,519.05 × 176,023.19 - Step 4: Simplify right side
311,997.18x = 75,781,337,613.07 - Step 5: Solve for x
x = 75,781,337,613.07/311,997.18 - Step 6: Final answer
x = 242,891.10
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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.