Finding the Fourth Proportional to 305,911.68, 422,143.76 and 169,954.40
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Solution
The fourth proportional to 305,911.68, 422,143.76 and 169,954.40 is: 234,529.09
Step by Step Solution
- Step 1: Write the proportion equation
305,911.68 : 422,143.76 = 169,954.40 : x - Step 2: Convert to fraction form
305,911.68/422,143.76 = 169,954.40/x - Step 3: Cross multiply
305,911.68x = 422,143.76 × 169,954.40 - Step 4: Simplify right side
305,911.68x = 71,745,189,444.54 - Step 5: Solve for x
x = 71,745,189,444.54/305,911.68 - Step 6: Final answer
x = 234,529.09
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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.