Finding the Fourth Proportional to 221,653.65, 332,529.09 and 71,909.09
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Solution
The fourth proportional to 221,653.65, 332,529.09 and 71,909.09 is: 107,879.40
Step by Step Solution
- Step 1: Write the proportion equation
221,653.65 : 332,529.09 = 71,909.09 : x - Step 2: Convert to fraction form
221,653.65/332,529.09 = 71,909.09/x - Step 3: Cross multiply
221,653.65x = 332,529.09 × 71,909.09 - Step 4: Simplify right side
221,653.65x = 23,911,862,597.78 - Step 5: Solve for x
x = 23,911,862,597.78/221,653.65 - Step 6: Final answer
x = 107,879.40
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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.