Finding the Fourth Proportional to 396,058.11, 546,559.09 and 214,769.48
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Solution
The fourth proportional to 396,058.11, 546,559.09 and 214,769.48 is: 296,381.28
Step by Step Solution
- Step 1: Write the proportion equation
396,058.11 : 546,559.09 = 214,769.48 : x - Step 2: Convert to fraction form
396,058.11/546,559.09 = 214,769.48/x - Step 3: Cross multiply
396,058.11x = 546,559.09 × 214,769.48 - Step 4: Simplify right side
396,058.11x = 117,384,209,486.93 - Step 5: Solve for x
x = 117,384,209,486.93/396,058.11 - Step 6: Final answer
x = 296,381.28
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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.