Finding the Fourth Proportional to 371,897.54, 513,221.73 and 202,131.62
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Solution
The fourth proportional to 371,897.54, 513,221.73 and 202,131.62 is: 278,943.33
Step by Step Solution
- Step 1: Write the proportion equation
371,897.54 : 513,221.73 = 202,131.62 : x - Step 2: Convert to fraction form
371,897.54/513,221.73 = 202,131.62/x - Step 3: Cross multiply
371,897.54x = 513,221.73 × 202,131.62 - Step 4: Simplify right side
371,897.54x = 103,738,339,704.10 - Step 5: Solve for x
x = 103,738,339,704.10/371,897.54 - Step 6: Final answer
x = 278,943.33
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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.