Finding the Fourth Proportional to 355,074.57, 489,995.33 and 193,930.26
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Solution
The fourth proportional to 355,074.57, 489,995.33 and 193,930.26 is: 267,619.62
Step by Step Solution
- Step 1: Write the proportion equation
355,074.57 : 489,995.33 = 193,930.26 : x - Step 2: Convert to fraction form
355,074.57/489,995.33 = 193,930.26/x - Step 3: Cross multiply
355,074.57x = 489,995.33 × 193,930.26 - Step 4: Simplify right side
355,074.57x = 95,024,920,776.03 - Step 5: Solve for x
x = 95,024,920,776.03/355,074.57 - Step 6: Final answer
x = 267,619.62
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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.