Finding the Fourth Proportional to 431,185.16, 646,902.59 and 178,418.99
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Solution
The fourth proportional to 431,185.16, 646,902.59 and 178,418.99 is: 267,680.15
Step by Step Solution
- Step 1: Write the proportion equation
431,185.16 : 646,902.59 = 178,418.99 : x - Step 2: Convert to fraction form
431,185.16/646,902.59 = 178,418.99/x - Step 3: Cross multiply
431,185.16x = 646,902.59 × 178,418.99 - Step 4: Simplify right side
431,185.16x = 115,419,707,461.35 - Step 5: Solve for x
x = 115,419,707,461.35/431,185.16 - Step 6: Final answer
x = 267,680.15
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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.