Finding the Fourth Proportional to 396,193.62, 546,743.95 and 214,905.09
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Solution
The fourth proportional to 396,193.62, 546,743.95 and 214,905.09 is: 296,567.26
Step by Step Solution
- Step 1: Write the proportion equation
396,193.62 : 546,743.95 = 214,905.09 : x - Step 2: Convert to fraction form
396,193.62/546,743.95 = 214,905.09/x - Step 3: Cross multiply
396,193.62x = 546,743.95 × 214,905.09 - Step 4: Simplify right side
396,193.62x = 117,498,057,781.71 - Step 5: Solve for x
x = 117,498,057,781.71/396,193.62 - Step 6: Final answer
x = 296,567.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.