Finding the Fourth Proportional to 433,138.08, 649,799.86 and 129,556.08
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Solution
The fourth proportional to 433,138.08, 649,799.86 and 129,556.08 is: 194,361.86
Step by Step Solution
- Step 1: Write the proportion equation
433,138.08 : 649,799.86 = 129,556.08 : x - Step 2: Convert to fraction form
433,138.08/649,799.86 = 129,556.08/x - Step 3: Cross multiply
433,138.08x = 649,799.86 × 129,556.08 - Step 4: Simplify right side
433,138.08x = 84,185,522,646.15 - Step 5: Solve for x
x = 84,185,522,646.15/433,138.08 - Step 6: Final answer
x = 194,361.86
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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.