Finding the Fourth Proportional to 281,434.55, 422,024.39 and 121,434.99
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Solution
The fourth proportional to 281,434.55, 422,024.39 and 121,434.99 is: 182,097.50
Step by Step Solution
- Step 1: Write the proportion equation
281,434.55 : 422,024.39 = 121,434.99 : x - Step 2: Convert to fraction form
281,434.55/422,024.39 = 121,434.99/x - Step 3: Cross multiply
281,434.55x = 422,024.39 × 121,434.99 - Step 4: Simplify right side
281,434.55x = 51,248,526,972.23 - Step 5: Solve for x
x = 51,248,526,972.23/281,434.55 - Step 6: Final answer
x = 182,097.50
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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.