Finding the Fourth Proportional to 431,728.84, 647,668.14 and 132,202.36
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Solution
The fourth proportional to 431,728.84, 647,668.14 and 132,202.36 is: 198,326.47
Step by Step Solution
- Step 1: Write the proportion equation
431,728.84 : 647,668.14 = 132,202.36 : x - Step 2: Convert to fraction form
431,728.84/647,668.14 = 132,202.36/x - Step 3: Cross multiply
431,728.84x = 647,668.14 × 132,202.36 - Step 4: Simplify right side
431,728.84x = 85,623,256,604.81 - Step 5: Solve for x
x = 85,623,256,604.81/431,728.84 - Step 6: Final answer
x = 198,326.47
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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.