Finding the Fourth Proportional to 230,586.36, 318,205.26 and 129,984.12
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Solution
The fourth proportional to 230,586.36, 318,205.26 and 129,984.12 is: 179,375.88
Step by Step Solution
- Step 1: Write the proportion equation
230,586.36 : 318,205.26 = 129,984.12 : x - Step 2: Convert to fraction form
230,586.36/318,205.26 = 129,984.12/x - Step 3: Cross multiply
230,586.36x = 318,205.26 × 129,984.12 - Step 4: Simplify right side
230,586.36x = 41,361,630,700.47 - Step 5: Solve for x
x = 41,361,630,700.47/230,586.36 - Step 6: Final answer
x = 179,375.88
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1.5x scale
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.