Finding the Fourth Proportional to 445,712.74, 668,497.66 and 142,067.44
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Solution
The fourth proportional to 445,712.74, 668,497.66 and 142,067.44 is: 213,078.39
Step by Step Solution
- Step 1: Write the proportion equation
445,712.74 : 668,497.66 = 142,067.44 : x - Step 2: Convert to fraction form
445,712.74/668,497.66 = 142,067.44/x - Step 3: Cross multiply
445,712.74x = 668,497.66 × 142,067.44 - Step 4: Simplify right side
445,712.74x = 94,971,751,202.19 - Step 5: Solve for x
x = 94,971,751,202.19/445,712.74 - Step 6: Final answer
x = 213,078.39
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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.