Finding the Fourth Proportional to 286,901.62, 396,007.59 and 191,408.07
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Solution
The fourth proportional to 286,901.62, 396,007.59 and 191,408.07 is: 264,198.75
Step by Step Solution
- Step 1: Write the proportion equation
286,901.62 : 396,007.59 = 191,408.07 : x - Step 2: Convert to fraction form
286,901.62/396,007.59 = 191,408.07/x - Step 3: Cross multiply
286,901.62x = 396,007.59 × 191,408.07 - Step 4: Simplify right side
286,901.62x = 75,799,048,507.25 - Step 5: Solve for x
x = 75,799,048,507.25/286,901.62 - Step 6: Final answer
x = 264,198.75
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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.