Finding the Fourth Proportional to 221,197.92, 331,796.79 and 54,985.92
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Solution
The fourth proportional to 221,197.92, 331,796.79 and 54,985.92 is: 82,478.86
Step by Step Solution
- Step 1: Write the proportion equation
221,197.92 : 331,796.79 = 54,985.92 : x - Step 2: Convert to fraction form
221,197.92/331,796.79 = 54,985.92/x - Step 3: Cross multiply
221,197.92x = 331,796.79 × 54,985.92 - Step 4: Simplify right side
221,197.92x = 18,244,151,751.20 - Step 5: Solve for x
x = 18,244,151,751.20/221,197.92 - Step 6: Final answer
x = 82,478.86
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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.