Finding the Fourth Proportional to 351,860.94, 485,543.64 and 198,906.39
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Solution
The fourth proportional to 351,860.94, 485,543.64 and 198,906.39 is: 274,476.99
Step by Step Solution
- Step 1: Write the proportion equation
351,860.94 : 485,543.64 = 198,906.39 : x - Step 2: Convert to fraction form
351,860.94/485,543.64 = 198,906.39/x - Step 3: Cross multiply
351,860.94x = 485,543.64 × 198,906.39 - Step 4: Simplify right side
351,860.94x = 96,577,732,619.86 - Step 5: Solve for x
x = 96,577,732,619.86/351,860.94 - Step 6: Final answer
x = 274,476.99
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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.