Finding the Fourth Proportional to 461,142.84, 636,268.77 and 279,850.68
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Solution
The fourth proportional to 461,142.84, 636,268.77 and 279,850.68 is: 386,128.19
Step by Step Solution
- Step 1: Write the proportion equation
461,142.84 : 636,268.77 = 279,850.68 : x - Step 2: Convert to fraction form
461,142.84/636,268.77 = 279,850.68/x - Step 3: Cross multiply
461,142.84x = 636,268.77 × 279,850.68 - Step 4: Simplify right side
461,142.84x = 178,060,247,947.26 - Step 5: Solve for x
x = 178,060,247,947.26/461,142.84 - Step 6: Final answer
x = 386,128.19
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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.