Finding the Fourth Proportional to 287,858.59, 431,603.12 and 119,495.13
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Solution
The fourth proportional to 287,858.59, 431,603.12 and 119,495.13 is: 179,165.99
Step by Step Solution
- Step 1: Write the proportion equation
287,858.59 : 431,603.12 = 119,495.13 : x - Step 2: Convert to fraction form
287,858.59/431,603.12 = 119,495.13/x - Step 3: Cross multiply
287,858.59x = 431,603.12 × 119,495.13 - Step 4: Simplify right side
287,858.59x = 51,574,469,613.03 - Step 5: Solve for x
x = 51,574,469,613.03/287,858.59 - Step 6: Final answer
x = 179,165.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.