Finding the Fourth Proportional to 431,937.02, 647,905.60 and 221,440.70
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Solution
The fourth proportional to 431,937.02, 647,905.60 and 221,440.70 is: 332,161.09
Step by Step Solution
- Step 1: Write the proportion equation
431,937.02 : 647,905.60 = 221,440.70 : x - Step 2: Convert to fraction form
431,937.02/647,905.60 = 221,440.70/x - Step 3: Cross multiply
431,937.02x = 647,905.60 × 221,440.70 - Step 4: Simplify right side
431,937.02x = 143,472,669,597.92 - Step 5: Solve for x
x = 143,472,669,597.92/431,937.02 - Step 6: Final answer
x = 332,161.09
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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.