Finding the Fourth Proportional to 221,739.55, 332,691.93 and 133,056.70
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Solution
The fourth proportional to 221,739.55, 332,691.93 and 133,056.70 is: 199,634.62
Step by Step Solution
- Step 1: Write the proportion equation
221,739.55 : 332,691.93 = 133,056.70 : x - Step 2: Convert to fraction form
221,739.55/332,691.93 = 133,056.70/x - Step 3: Cross multiply
221,739.55x = 332,691.93 × 133,056.70 - Step 4: Simplify right side
221,739.55x = 44,266,890,322.43 - Step 5: Solve for x
x = 44,266,890,322.43/221,739.55 - Step 6: Final answer
x = 199,634.62
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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.