Finding the Fourth Proportional to 323,765.74, 485,531.97 and 136,791.82
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Solution
The fourth proportional to 323,765.74, 485,531.97 and 136,791.82 is: 205,138.45
Step by Step Solution
- Step 1: Write the proportion equation
323,765.74 : 485,531.97 = 136,791.82 : x - Step 2: Convert to fraction form
323,765.74/485,531.97 = 136,791.82/x - Step 3: Cross multiply
323,765.74x = 485,531.97 × 136,791.82 - Step 4: Simplify right side
323,765.74x = 66,416,801,844.49 - Step 5: Solve for x
x = 66,416,801,844.49/323,765.74 - Step 6: Final answer
x = 205,138.45
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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.