Finding the Fourth Proportional to 221,452.40, 332,178.60 and 103,135.70
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Solution
The fourth proportional to 221,452.40, 332,178.60 and 103,135.70 is: 154,703.55
Step by Step Solution
- Step 1: Write the proportion equation
221,452.40 : 332,178.60 = 103,135.70 : x - Step 2: Convert to fraction form
221,452.40/332,178.60 = 103,135.70/x - Step 3: Cross multiply
221,452.40x = 332,178.60 × 103,135.70 - Step 4: Simplify right side
221,452.40x = 34,259,472,436.02 - Step 5: Solve for x
x = 34,259,472,436.02/221,452.40 - Step 6: Final answer
x = 154,703.55
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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.