Finding the Fourth Proportional to 486,161.78, 729,242.66 and 131,175.79
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Solution
The fourth proportional to 486,161.78, 729,242.66 and 131,175.79 is: 196,763.68
Step by Step Solution
- Step 1: Write the proportion equation
486,161.78 : 729,242.66 = 131,175.79 : x - Step 2: Convert to fraction form
486,161.78/729,242.66 = 131,175.79/x - Step 3: Cross multiply
486,161.78x = 729,242.66 × 131,175.79 - Step 4: Simplify right side
486,161.78x = 95,658,980,532.03 - Step 5: Solve for x
x = 95,658,980,532.03/486,161.78 - Step 6: Final answer
x = 196,763.68
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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.