Finding the Fourth Proportional to 207,958.18, 286,850.16 and 136,342.84
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Solution
The fourth proportional to 207,958.18, 286,850.16 and 136,342.84 is: 188,066.49
Step by Step Solution
- Step 1: Write the proportion equation
207,958.18 : 286,850.16 = 136,342.84 : x - Step 2: Convert to fraction form
207,958.18/286,850.16 = 136,342.84/x - Step 3: Cross multiply
207,958.18x = 286,850.16 × 136,342.84 - Step 4: Simplify right side
207,958.18x = 39,109,965,468.85 - Step 5: Solve for x
x = 39,109,965,468.85/207,958.18 - Step 6: Final answer
x = 188,066.49
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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.