Finding the Fourth Proportional to 200,169.78, 275,916.69 and 157,660.98
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Solution
The fourth proportional to 200,169.78, 275,916.69 and 157,660.98 is: 217,321.99
Step by Step Solution
- Step 1: Write the proportion equation
200,169.78 : 275,916.69 = 157,660.98 : x - Step 2: Convert to fraction form
200,169.78/275,916.69 = 157,660.98/x - Step 3: Cross multiply
200,169.78x = 275,916.69 × 157,660.98 - Step 4: Simplify right side
200,169.78x = 43,501,295,743.76 - Step 5: Solve for x
x = 43,501,295,743.76/200,169.78 - Step 6: Final answer
x = 217,321.99
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1.5x scale
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.