Finding the Fourth Proportional to 436,858.14, 655,287.48 and 121,315.08
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Solution
The fourth proportional to 436,858.14, 655,287.48 and 121,315.08 is: 181,972.69
Step by Step Solution
- Step 1: Write the proportion equation
436,858.14 : 655,287.48 = 121,315.08 : x - Step 2: Convert to fraction form
436,858.14/655,287.48 = 121,315.08/x - Step 3: Cross multiply
436,858.14x = 655,287.48 × 121,315.08 - Step 4: Simplify right side
436,858.14x = 79,496,253,059.20 - Step 5: Solve for x
x = 79,496,253,059.20/436,858.14 - Step 6: Final answer
x = 181,972.69
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1.5x scale
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.