Finding the Fourth Proportional to 287,911.69, 397,317.01 and 158,858.19
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Solution
The fourth proportional to 287,911.69, 397,317.01 and 158,858.19 is: 219,223.69
Step by Step Solution
- Step 1: Write the proportion equation
287,911.69 : 397,317.01 = 158,858.19 : x - Step 2: Convert to fraction form
287,911.69/397,317.01 = 158,858.19/x - Step 3: Cross multiply
287,911.69x = 397,317.01 × 158,858.19 - Step 4: Simplify right side
287,911.69x = 63,117,062,082.98 - Step 5: Solve for x
x = 63,117,062,082.98/287,911.69 - Step 6: Final answer
x = 219,223.69
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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.