Finding the Fourth Proportional to 286,515.44, 429,625.49 and 128,608.54
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Solution
The fourth proportional to 286,515.44, 429,625.49 and 128,608.54 is: 192,846.53
Step by Step Solution
- Step 1: Write the proportion equation
286,515.44 : 429,625.49 = 128,608.54 : x - Step 2: Convert to fraction form
286,515.44/429,625.49 = 128,608.54/x - Step 3: Cross multiply
286,515.44x = 429,625.49 × 128,608.54 - Step 4: Simplify right side
286,515.44x = 55,253,507,015.68 - Step 5: Solve for x
x = 55,253,507,015.68/286,515.44 - Step 6: Final answer
x = 192,846.53
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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.