Finding the Fourth Proportional to 281,448.62, 422,170.28 and 121,637.54
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Solution
The fourth proportional to 281,448.62, 422,170.28 and 121,637.54 is: 182,455.17
Step by Step Solution
- Step 1: Write the proportion equation
281,448.62 : 422,170.28 = 121,637.54 : x - Step 2: Convert to fraction form
281,448.62/422,170.28 = 121,637.54/x - Step 3: Cross multiply
281,448.62x = 422,170.28 × 121,637.54 - Step 4: Simplify right side
281,448.62x = 51,351,754,767.55 - Step 5: Solve for x
x = 51,351,754,767.55/281,448.62 - Step 6: Final answer
x = 182,455.17
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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.