Finding the Fourth Proportional to 323,917.11, 447,025.64 and 178,722.18
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Solution
The fourth proportional to 323,917.11, 447,025.64 and 178,722.18 is: 246,647.66
Step by Step Solution
- Step 1: Write the proportion equation
323,917.11 : 447,025.64 = 178,722.18 : x - Step 2: Convert to fraction form
323,917.11/447,025.64 = 178,722.18/x - Step 3: Cross multiply
323,917.11x = 447,025.64 × 178,722.18 - Step 4: Simplify right side
323,917.11x = 79,893,396,003.08 - Step 5: Solve for x
x = 79,893,396,003.08/323,917.11 - Step 6: Final answer
x = 246,647.66
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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.