Finding the Fourth Proportional to 221,109.80, 331,664.70 and 73,365.80
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Solution
The fourth proportional to 221,109.80, 331,664.70 and 73,365.80 is: 110,048.70
Step by Step Solution
- Step 1: Write the proportion equation
221,109.80 : 331,664.70 = 73,365.80 : x - Step 2: Convert to fraction form
221,109.80/331,664.70 = 73,365.80/x - Step 3: Cross multiply
221,109.80x = 331,664.70 × 73,365.80 - Step 4: Simplify right side
221,109.80x = 24,332,846,047.26 - Step 5: Solve for x
x = 24,332,846,047.26/221,109.80 - Step 6: Final answer
x = 110,048.70
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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.