Finding the Fourth Proportional to 222,387.18, 306,893.84 and 120,412.74
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Solution
The fourth proportional to 222,387.18, 306,893.84 and 120,412.74 is: 166,169.33
Step by Step Solution
- Step 1: Write the proportion equation
222,387.18 : 306,893.84 = 120,412.74 : x - Step 2: Convert to fraction form
222,387.18/306,893.84 = 120,412.74/x - Step 3: Cross multiply
222,387.18x = 306,893.84 × 120,412.74 - Step 4: Simplify right side
222,387.18x = 36,953,928,163.52 - Step 5: Solve for x
x = 36,953,928,163.52/222,387.18 - Step 6: Final answer
x = 166,169.33
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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.