Finding the Fourth Proportional to 305,886.32, 422,190.64 and 169,966.99
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Solution
The fourth proportional to 305,886.32, 422,190.64 and 169,966.99 is: 234,591.96
Step by Step Solution
- Step 1: Write the proportion equation
305,886.32 : 422,190.64 = 169,966.99 : x - Step 2: Convert to fraction form
305,886.32/422,190.64 = 169,966.99/x - Step 3: Cross multiply
305,886.32x = 422,190.64 × 169,966.99 - Step 4: Simplify right side
305,886.32x = 71,758,472,286.97 - Step 5: Solve for x
x = 71,758,472,286.97/305,886.32 - Step 6: Final answer
x = 234,591.96
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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.