Finding the Fourth Proportional to 371,899.36, 513,222.96 and 202,136.80
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Solution
The fourth proportional to 371,899.36, 513,222.96 and 202,136.80 is: 278,949.79
Step by Step Solution
- Step 1: Write the proportion equation
371,899.36 : 513,222.96 = 202,136.80 : x - Step 2: Convert to fraction form
371,899.36/513,222.96 = 202,136.80/x - Step 3: Cross multiply
371,899.36x = 513,222.96 × 202,136.80 - Step 4: Simplify right side
371,899.36x = 103,741,246,820.93 - Step 5: Solve for x
x = 103,741,246,820.93/371,899.36 - Step 6: Final answer
x = 278,949.79
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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.