Finding the Fourth Proportional to 222,238.13, 306,690.77 and 121,638.29
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Solution
The fourth proportional to 222,238.13, 306,690.77 and 121,638.29 is: 167,862.02
Step by Step Solution
- Step 1: Write the proportion equation
222,238.13 : 306,690.77 = 121,638.29 : x - Step 2: Convert to fraction form
222,238.13/306,690.77 = 121,638.29/x - Step 3: Cross multiply
222,238.13x = 306,690.77 × 121,638.29 - Step 4: Simplify right side
222,238.13x = 37,305,339,592.23 - Step 5: Solve for x
x = 37,305,339,592.23/222,238.13 - Step 6: Final answer
x = 167,862.02
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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.