Finding the Fourth Proportional to 221,217.93, 305,281.05 and 120,615.93
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Solution
The fourth proportional to 221,217.93, 305,281.05 and 120,615.93 is: 166,450.15
Step by Step Solution
- Step 1: Write the proportion equation
221,217.93 : 305,281.05 = 120,615.93 : x - Step 2: Convert to fraction form
221,217.93/305,281.05 = 120,615.93/x - Step 3: Cross multiply
221,217.93x = 305,281.05 × 120,615.93 - Step 4: Simplify right side
221,217.93x = 36,821,757,757.13 - Step 5: Solve for x
x = 36,821,757,757.13/221,217.93 - Step 6: Final answer
x = 166,450.15
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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.