Finding the Fourth Proportional to 436,761.72, 655,142.58 and 121,218.66
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Solution
The fourth proportional to 436,761.72, 655,142.58 and 121,218.66 is: 181,827.99
Step by Step Solution
- Step 1: Write the proportion equation
436,761.72 : 655,142.58 = 121,218.66 : x - Step 2: Convert to fraction form
436,761.72/655,142.58 = 121,218.66/x - Step 3: Cross multiply
436,761.72x = 655,142.58 × 121,218.66 - Step 4: Simplify right side
436,761.72x = 79,415,505,656.54 - Step 5: Solve for x
x = 79,415,505,656.54/436,761.72 - Step 6: Final answer
x = 181,827.99
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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.