Finding the Fourth Proportional to 351,567.78, 485,193.36 and 198,634.08
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Solution
The fourth proportional to 351,567.78, 485,193.36 and 198,634.08 is: 274,131.88
Step by Step Solution
- Step 1: Write the proportion equation
351,567.78 : 485,193.36 = 198,634.08 : x - Step 2: Convert to fraction form
351,567.78/485,193.36 = 198,634.08/x - Step 3: Cross multiply
351,567.78x = 485,193.36 × 198,634.08 - Step 4: Simplify right side
351,567.78x = 96,375,936,685.71 - Step 5: Solve for x
x = 96,375,936,685.71/351,567.78 - Step 6: Final answer
x = 274,131.88
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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.