Finding the Fourth Proportional to 208,039.42, 287,101.73 and 117,390.09
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Solution
The fourth proportional to 208,039.42, 287,101.73 and 117,390.09 is: 162,002.47
Step by Step Solution
- Step 1: Write the proportion equation
208,039.42 : 287,101.73 = 117,390.09 : x - Step 2: Convert to fraction form
208,039.42/287,101.73 = 117,390.09/x - Step 3: Cross multiply
208,039.42x = 287,101.73 × 117,390.09 - Step 4: Simplify right side
208,039.42x = 33,702,899,293.96 - Step 5: Solve for x
x = 33,702,899,293.96/208,039.42 - Step 6: Final answer
x = 162,002.47
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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.