Finding the Fourth Proportional to 259,571.88, 389,531.55 and 91,092.99
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Solution
The fourth proportional to 259,571.88, 389,531.55 and 91,092.99 is: 136,700.45
Step by Step Solution
- Step 1: Write the proportion equation
259,571.88 : 389,531.55 = 91,092.99 : x - Step 2: Convert to fraction form
259,571.88/389,531.55 = 91,092.99/x - Step 3: Cross multiply
259,571.88x = 389,531.55 × 91,092.99 - Step 4: Simplify right side
259,571.88x = 35,483,593,588.83 - Step 5: Solve for x
x = 35,483,593,588.83/259,571.88 - Step 6: Final answer
x = 136,700.45
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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.