Finding the Fourth Proportional to 190,872.24, 286,309.08 and 66,213.60
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Solution
The fourth proportional to 190,872.24, 286,309.08 and 66,213.60 is: 99,320.65
Step by Step Solution
- Step 1: Write the proportion equation
190,872.24 : 286,309.08 = 66,213.60 : x - Step 2: Convert to fraction form
190,872.24/286,309.08 = 66,213.60/x - Step 3: Cross multiply
190,872.24x = 286,309.08 × 66,213.60 - Step 4: Simplify right side
190,872.24x = 18,957,554,899.49 - Step 5: Solve for x
x = 18,957,554,899.49/190,872.24 - Step 6: Final answer
x = 99,320.65
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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.