Finding the Fourth Proportional to 207,936.95, 286,942.68 and 121,883.94
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Solution
The fourth proportional to 207,936.95, 286,942.68 and 121,883.94 is: 168,193.80
Step by Step Solution
- Step 1: Write the proportion equation
207,936.95 : 286,942.68 = 121,883.94 : x - Step 2: Convert to fraction form
207,936.95/286,942.68 = 121,883.94/x - Step 3: Cross multiply
207,936.95x = 286,942.68 × 121,883.94 - Step 4: Simplify right side
207,936.95x = 34,973,704,392.56 - Step 5: Solve for x
x = 34,973,704,392.56/207,936.95 - Step 6: Final answer
x = 168,193.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.