Finding the Fourth Proportional to 209,862.99, 289,578.06 and 117,964.08
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Solution
The fourth proportional to 209,862.99, 289,578.06 and 117,964.08 is: 162,771.96
Step by Step Solution
- Step 1: Write the proportion equation
209,862.99 : 289,578.06 = 117,964.08 : x - Step 2: Convert to fraction form
209,862.99/289,578.06 = 117,964.08/x - Step 3: Cross multiply
209,862.99x = 289,578.06 × 117,964.08 - Step 4: Simplify right side
209,862.99x = 34,159,809,436.08 - Step 5: Solve for x
x = 34,159,809,436.08/209,862.99 - Step 6: Final answer
x = 162,771.96
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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.