Finding the Fourth Proportional to 338,917.42, 467,657.40 and 202,918.78
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Solution
The fourth proportional to 338,917.42, 467,657.40 and 202,918.78 is: 279,998.79
Step by Step Solution
- Step 1: Write the proportion equation
338,917.42 : 467,657.40 = 202,918.78 : x - Step 2: Convert to fraction form
338,917.42/467,657.40 = 202,918.78/x - Step 3: Cross multiply
338,917.42x = 467,657.40 × 202,918.78 - Step 4: Simplify right side
338,917.42x = 94,896,469,065.97 - Step 5: Solve for x
x = 94,896,469,065.97/338,917.42 - Step 6: Final answer
x = 279,998.79
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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.