Finding the Fourth Proportional to 290,883.21, 436,330.29 and 91,199.18
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Solution
The fourth proportional to 290,883.21, 436,330.29 and 91,199.18 is: 136,800.48
Step by Step Solution
- Step 1: Write the proportion equation
290,883.21 : 436,330.29 = 91,199.18 : x - Step 2: Convert to fraction form
290,883.21/436,330.29 = 91,199.18/x - Step 3: Cross multiply
290,883.21x = 436,330.29 × 91,199.18 - Step 4: Simplify right side
290,883.21x = 39,792,962,475.51 - Step 5: Solve for x
x = 39,792,962,475.51/290,883.21 - Step 6: Final answer
x = 136,800.48
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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.