Finding the Fourth Proportional to 430,757.07, 646,231.97 and 131,261.08
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Solution
The fourth proportional to 430,757.07, 646,231.97 and 131,261.08 is: 196,920.99
Step by Step Solution
- Step 1: Write the proportion equation
430,757.07 : 646,231.97 = 131,261.08 : x - Step 2: Convert to fraction form
430,757.07/646,231.97 = 131,261.08/x - Step 3: Cross multiply
430,757.07x = 646,231.97 × 131,261.08 - Step 4: Simplify right side
430,757.07x = 84,825,105,656.42 - Step 5: Solve for x
x = 84,825,105,656.42/430,757.07 - Step 6: Final answer
x = 196,920.99
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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.