Finding the Fourth Proportional to 222,368.42, 306,864.69 and 120,393.05
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Solution
The fourth proportional to 222,368.42, 306,864.69 and 120,393.05 is: 166,140.39
Step by Step Solution
- Step 1: Write the proportion equation
222,368.42 : 306,864.69 = 120,393.05 : x - Step 2: Convert to fraction form
222,368.42/306,864.69 = 120,393.05/x - Step 3: Cross multiply
222,368.42x = 306,864.69 × 120,393.05 - Step 4: Simplify right side
222,368.42x = 36,944,375,966.40 - Step 5: Solve for x
x = 36,944,375,966.40/222,368.42 - Step 6: Final answer
x = 166,140.39
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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.