Finding the Fourth Proportional to 230,586.75, 318,209.72 and 129,984.75
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Solution
The fourth proportional to 230,586.75, 318,209.72 and 129,984.75 is: 179,378.96
Step by Step Solution
- Step 1: Write the proportion equation
230,586.75 : 318,209.72 = 129,984.75 : x - Step 2: Convert to fraction form
230,586.75/318,209.72 = 129,984.75/x - Step 3: Cross multiply
230,586.75x = 318,209.72 × 129,984.75 - Step 4: Simplify right side
230,586.75x = 41,362,410,251.85 - Step 5: Solve for x
x = 41,362,410,251.85/230,586.75 - Step 6: Final answer
x = 179,378.96
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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.