Finding the Fourth Proportional to 221,347.80, 332,021.70 and 55,135.80
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Solution
The fourth proportional to 221,347.80, 332,021.70 and 55,135.80 is: 82,703.70
Step by Step Solution
- Step 1: Write the proportion equation
221,347.80 : 332,021.70 = 55,135.80 : x - Step 2: Convert to fraction form
221,347.80/332,021.70 = 55,135.80/x - Step 3: Cross multiply
221,347.80x = 332,021.70 × 55,135.80 - Step 4: Simplify right side
221,347.80x = 18,306,282,046.86 - Step 5: Solve for x
x = 18,306,282,046.86/221,347.80 - Step 6: Final answer
x = 82,703.70
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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.