Finding the Fourth Proportional to 642,157.44, 963,426.24 and 221,475.84
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Solution
The fourth proportional to 642,157.44, 963,426.24 and 221,475.84 is: 332,279.32
Step by Step Solution
- Step 1: Write the proportion equation
642,157.44 : 963,426.24 = 221,475.84 : x - Step 2: Convert to fraction form
642,157.44/963,426.24 = 221,475.84/x - Step 3: Cross multiply
642,157.44x = 963,426.24 × 221,475.84 - Step 4: Simplify right side
642,157.44x = 213,375,635,782.04 - Step 5: Solve for x
x = 213,375,635,782.04/642,157.44 - Step 6: Final answer
x = 332,279.32
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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.