Finding the Fourth Proportional to 206,756.97, 285,331.50 and 116,128.91
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Solution
The fourth proportional to 206,756.97, 285,331.50 and 116,128.91 is: 160,261.75
Step by Step Solution
- Step 1: Write the proportion equation
206,756.97 : 285,331.50 = 116,128.91 : x - Step 2: Convert to fraction form
206,756.97/285,331.50 = 116,128.91/x - Step 3: Cross multiply
206,756.97x = 285,331.50 × 116,128.91 - Step 4: Simplify right side
206,756.97x = 33,135,234,657.01 - Step 5: Solve for x
x = 33,135,234,657.01/206,756.97 - Step 6: Final answer
x = 160,261.75
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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.