Finding the Fourth Proportional to 431,138.26, 646,711.17 and 150,656.14
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Solution
The fourth proportional to 431,138.26, 646,711.17 and 150,656.14 is: 225,985.53
Step by Step Solution
- Step 1: Write the proportion equation
431,138.26 : 646,711.17 = 150,656.14 : x - Step 2: Convert to fraction form
431,138.26/646,711.17 = 150,656.14/x - Step 3: Cross multiply
431,138.26x = 646,711.17 × 150,656.14 - Step 4: Simplify right side
431,138.26x = 97,431,008,567.08 - Step 5: Solve for x
x = 97,431,008,567.08/431,138.26 - Step 6: Final answer
x = 225,985.53
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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.