Finding the Fourth Proportional to 180,391.21, 270,680.13 and 130,879.96
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Solution
The fourth proportional to 180,391.21, 270,680.13 and 130,879.96 is: 196,387.64
Step by Step Solution
- Step 1: Write the proportion equation
180,391.21 : 270,680.13 = 130,879.96 : x - Step 2: Convert to fraction form
180,391.21/270,680.13 = 130,879.96/x - Step 3: Cross multiply
180,391.21x = 270,680.13 × 130,879.96 - Step 4: Simplify right side
180,391.21x = 35,426,604,587.19 - Step 5: Solve for x
x = 35,426,604,587.19/180,391.21 - Step 6: Final answer
x = 196,387.64
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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.