Finding the Fourth Proportional to 430,716.11, 646,218.05 and 190,797.44
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Solution
The fourth proportional to 430,716.11, 646,218.05 and 190,797.44 is: 286,259.89
Step by Step Solution
- Step 1: Write the proportion equation
430,716.11 : 646,218.05 = 190,797.44 : x - Step 2: Convert to fraction form
430,716.11/646,218.05 = 190,797.44/x - Step 3: Cross multiply
430,716.11x = 646,218.05 × 190,797.44 - Step 4: Simplify right side
430,716.11x = 123,296,745,436.72 - Step 5: Solve for x
x = 123,296,745,436.72/430,716.11 - Step 6: Final answer
x = 286,259.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.