Finding the Fourth Proportional to 207,682.62, 286,697.70 and 121,629.64
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Solution
The fourth proportional to 207,682.62, 286,697.70 and 121,629.64 is: 167,904.94
Step by Step Solution
- Step 1: Write the proportion equation
207,682.62 : 286,697.70 = 121,629.64 : x - Step 2: Convert to fraction form
207,682.62/286,697.70 = 121,629.64/x - Step 3: Cross multiply
207,682.62x = 286,697.70 × 121,629.64 - Step 4: Simplify right side
207,682.62x = 34,870,938,039.83 - Step 5: Solve for x
x = 34,870,938,039.83/207,682.62 - Step 6: Final answer
x = 167,904.94
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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.