Finding the Fourth Proportional to 641,237.30, 961,629.15 and 220,415.30
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Solution
The fourth proportional to 641,237.30, 961,629.15 and 220,415.30 is: 330,544.99
Step by Step Solution
- Step 1: Write the proportion equation
641,237.30 : 961,629.15 = 220,415.30 : x - Step 2: Convert to fraction form
641,237.30/961,629.15 = 220,415.30/x - Step 3: Cross multiply
641,237.30x = 961,629.15 × 220,415.30 - Step 4: Simplify right side
641,237.30x = 211,957,777,586.00 - Step 5: Solve for x
x = 211,957,777,586.00/641,237.30 - Step 6: Final answer
x = 330,544.99
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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.