Finding the Fourth Proportional to 371,887.07, 513,202.36 and 202,121.20
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Solution
The fourth proportional to 371,887.07, 513,202.36 and 202,121.20 is: 278,926.28
Step by Step Solution
- Step 1: Write the proportion equation
371,887.07 : 513,202.36 = 202,121.20 : x - Step 2: Convert to fraction form
371,887.07/513,202.36 = 202,121.20/x - Step 3: Cross multiply
371,887.07x = 513,202.36 × 202,121.20 - Step 4: Simplify right side
371,887.07x = 103,729,076,846.03 - Step 5: Solve for x
x = 103,729,076,846.03/371,887.07 - Step 6: Final answer
x = 278,926.28
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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.