Finding the Fourth Proportional to 222,107.42, 306,515.49 and 121,505.42
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Solution
The fourth proportional to 222,107.42, 306,515.49 and 121,505.42 is: 167,681.45
Step by Step Solution
- Step 1: Write the proportion equation
222,107.42 : 306,515.49 = 121,505.42 : x - Step 2: Convert to fraction form
222,107.42/306,515.49 = 121,505.42/x - Step 3: Cross multiply
222,107.42x = 306,515.49 × 121,505.42 - Step 4: Simplify right side
222,107.42x = 37,243,293,348.96 - Step 5: Solve for x
x = 37,243,293,348.96/222,107.42 - Step 6: Final answer
x = 167,681.45
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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.