Finding the Fourth Proportional to 414,043.90, 620,622.91 and 214,163.06
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Solution
The fourth proportional to 414,043.90, 620,622.91 and 214,163.06 is: 321,015.48
Step by Step Solution
- Step 1: Write the proportion equation
414,043.90 : 620,622.91 = 214,163.06 : x - Step 2: Convert to fraction form
414,043.90/620,622.91 = 214,163.06/x - Step 3: Cross multiply
414,043.90x = 620,622.91 × 214,163.06 - Step 4: Simplify right side
414,043.90x = 132,914,501,511.71 - Step 5: Solve for x
x = 132,914,501,511.71/414,043.90 - Step 6: Final answer
x = 321,015.48
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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.