Finding the Fourth Proportional to 222,403.29, 306,919.09 and 120,431.07
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Solution
The fourth proportional to 222,403.29, 306,919.09 and 120,431.07 is: 166,196.26
Step by Step Solution
- Step 1: Write the proportion equation
222,403.29 : 306,919.09 = 120,431.07 : x - Step 2: Convert to fraction form
222,403.29/306,919.09 = 120,431.07/x - Step 3: Cross multiply
222,403.29x = 306,919.09 × 120,431.07 - Step 4: Simplify right side
222,403.29x = 36,962,595,262.00 - Step 5: Solve for x
x = 36,962,595,262.00/222,403.29 - Step 6: Final answer
x = 166,196.26
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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.