Finding the Fourth Proportional to 436,958.99, 655,474.05 and 121,415.93
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Solution
The fourth proportional to 436,958.99, 655,474.05 and 121,415.93 is: 182,133.78
Step by Step Solution
- Step 1: Write the proportion equation
436,958.99 : 655,474.05 = 121,415.93 : x - Step 2: Convert to fraction form
436,958.99/655,474.05 = 121,415.93/x - Step 3: Cross multiply
436,958.99x = 655,474.05 × 121,415.93 - Step 4: Simplify right side
436,958.99x = 79,584,991,371.62 - Step 5: Solve for x
x = 79,584,991,371.62/436,958.99 - Step 6: Final answer
x = 182,133.78
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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.