Finding the Fourth Proportional to 221,621.75, 332,432.63 and 55,409.75
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Solution
The fourth proportional to 221,621.75, 332,432.63 and 55,409.75 is: 83,114.63
Step by Step Solution
- Step 1: Write the proportion equation
221,621.75 : 332,432.63 = 55,409.75 : x - Step 2: Convert to fraction form
221,621.75/332,432.63 = 55,409.75/x - Step 3: Cross multiply
221,621.75x = 332,432.63 × 55,409.75 - Step 4: Simplify right side
221,621.75x = 18,420,008,643.09 - Step 5: Solve for x
x = 18,420,008,643.09/221,621.75 - Step 6: Final answer
x = 83,114.63
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1.5x scale
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.