Finding the Fourth Proportional to 221,327.92, 305,433.50 and 120,728.08
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Solution
The fourth proportional to 221,327.92, 305,433.50 and 120,728.08 is: 166,605.28
Step by Step Solution
- Step 1: Write the proportion equation
221,327.92 : 305,433.50 = 120,728.08 : x - Step 2: Convert to fraction form
221,327.92/305,433.50 = 120,728.08/x - Step 3: Cross multiply
221,327.92x = 305,433.50 × 120,728.08 - Step 4: Simplify right side
221,327.92x = 36,874,399,419.04 - Step 5: Solve for x
x = 36,874,399,419.04/221,327.92 - Step 6: Final answer
x = 166,605.28
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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.