Finding the Fourth Proportional to 445,887.36, 669,049.74 and 209,249.28
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Solution
The fourth proportional to 445,887.36, 669,049.74 and 209,249.28 is: 313,976.55
Step by Step Solution
- Step 1: Write the proportion equation
445,887.36 : 669,049.74 = 209,249.28 : x - Step 2: Convert to fraction form
445,887.36/669,049.74 = 209,249.28/x - Step 3: Cross multiply
445,887.36x = 669,049.74 × 209,249.28 - Step 4: Simplify right side
445,887.36x = 139,998,176,379.19 - Step 5: Solve for x
x = 139,998,176,379.19/445,887.36 - Step 6: Final answer
x = 313,976.55
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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.