Finding the Fourth Proportional to 431,722.72, 647,585.66 and 132,202.09
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Solution
The fourth proportional to 431,722.72, 647,585.66 and 132,202.09 is: 198,303.62
Step by Step Solution
- Step 1: Write the proportion equation
431,722.72 : 647,585.66 = 132,202.09 : x - Step 2: Convert to fraction form
431,722.72/647,585.66 = 132,202.09/x - Step 3: Cross multiply
431,722.72x = 647,585.66 × 132,202.09 - Step 4: Simplify right side
431,722.72x = 85,612,177,706.03 - Step 5: Solve for x
x = 85,612,177,706.03/431,722.72 - Step 6: Final answer
x = 198,303.62
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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.