Finding the Fourth Proportional to 222,403.73, 306,917.30 and 120,429.99
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Solution
The fourth proportional to 222,403.73, 306,917.30 and 120,429.99 is: 166,193.47
Step by Step Solution
- Step 1: Write the proportion equation
222,403.73 : 306,917.30 = 120,429.99 : x - Step 2: Convert to fraction form
222,403.73/306,917.30 = 120,429.99/x - Step 3: Cross multiply
222,403.73x = 306,917.30 × 120,429.99 - Step 4: Simplify right side
222,403.73x = 36,962,047,670.90 - Step 5: Solve for x
x = 36,962,047,670.90/222,403.73 - Step 6: Final answer
x = 166,193.47
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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.