Finding the Fourth Proportional to 206,567.42, 285,073.91 and 115,918.70
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Solution
The fourth proportional to 206,567.42, 285,073.91 and 115,918.70 is: 159,973.90
Step by Step Solution
- Step 1: Write the proportion equation
206,567.42 : 285,073.91 = 115,918.70 : x - Step 2: Convert to fraction form
206,567.42/285,073.91 = 115,918.70/x - Step 3: Cross multiply
206,567.42x = 285,073.91 × 115,918.70 - Step 4: Simplify right side
206,567.42x = 33,045,395,046.15 - Step 5: Solve for x
x = 33,045,395,046.15/206,567.42 - Step 6: Final answer
x = 159,973.90
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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.