Finding the Fourth Proportional to 208,588.23, 287,850.01 and 117,961.99
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Solution
The fourth proportional to 208,588.23, 287,850.01 and 117,961.99 is: 162,786.55
Step by Step Solution
- Step 1: Write the proportion equation
208,588.23 : 287,850.01 = 117,961.99 : x - Step 2: Convert to fraction form
208,588.23/287,850.01 = 117,961.99/x - Step 3: Cross multiply
208,588.23x = 287,850.01 × 117,961.99 - Step 4: Simplify right side
208,588.23x = 33,955,358,986.59 - Step 5: Solve for x
x = 33,955,358,986.59/208,588.23 - Step 6: Final answer
x = 162,786.55
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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.