Finding the Fourth Proportional to 281,556.68, 422,473.80 and 131,807.12
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Solution
The fourth proportional to 281,556.68, 422,473.80 and 131,807.12 is: 197,775.65
Step by Step Solution
- Step 1: Write the proportion equation
281,556.68 : 422,473.80 = 131,807.12 : x - Step 2: Convert to fraction form
281,556.68/422,473.80 = 131,807.12/x - Step 3: Cross multiply
281,556.68x = 422,473.80 × 131,807.12 - Step 4: Simplify right side
281,556.68x = 55,685,054,853.46 - Step 5: Solve for x
x = 55,685,054,853.46/281,556.68 - Step 6: Final answer
x = 197,775.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.