Finding the Fourth Proportional to 328,912.21, 493,430.52 and 104,329.18
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Solution
The fourth proportional to 328,912.21, 493,430.52 and 104,329.18 is: 156,513.50
Step by Step Solution
- Step 1: Write the proportion equation
328,912.21 : 493,430.52 = 104,329.18 : x - Step 2: Convert to fraction form
328,912.21/493,430.52 = 104,329.18/x - Step 3: Cross multiply
328,912.21x = 493,430.52 × 104,329.18 - Step 4: Simplify right side
328,912.21x = 51,479,201,538.57 - Step 5: Solve for x
x = 51,479,201,538.57/328,912.21 - Step 6: Final answer
x = 156,513.50
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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.